Mckvie - 1-5 June 2018 Pre Training Assessment - 5
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The cube root of .000216 is:
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0.6
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0.06
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0.77
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0.87
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About This Quiz
MCKVIE - 1-5 June 2018- Pre-Training Assessment - 5
This Quiz is available from 1 June to 5 June , 2018 , 3 PM
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- 2.
A memory chip has 8 data lines and 9 address lines. How many bytes can be stored on it?
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511
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512
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500
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516
Correct Answer
A. 512Explanation
A memory chip with 8 data lines and 9 address lines can store 512 bytes. The number of bytes that can be stored is determined by the combination of the address lines. With 9 address lines, there are 2^9 = 512 unique addresses that can be accessed. Since each address corresponds to one byte of data, the memory chip can store 512 bytes.Rate this question:
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- 3.
The sum of two number is 25 and their difference is 13. Find their product.
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104
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114
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315
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325
Correct Answer
A. 114Explanation
Let's assume the two numbers as x and y. From the given information, we can form two equations:
1) x + y = 25
2) x - y = 13
By solving these equations simultaneously, we can find the values of x and y. Adding equation 1 and equation 2, we get:
2x = 38
x = 19
Substituting the value of x in equation 1, we get:
19 + y = 25
y = 6
The product of x and y is:
19 * 6 = 114.Rate this question:
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- 4.
The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is:
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3
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13
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23
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33
Correct Answer
A. 23Explanation
To find the least number that should be added to 2497 so that the sum is divisible by 5, 6, 4, and 3, we need to find the least common multiple (LCM) of these numbers. The LCM of 5, 6, 4, and 3 is 60. We need to find the remainder when 2497 is divided by 60, which is 17. To make the sum divisible by 5, 6, 4, and 3, we need to add the difference between 60 and 17, which is 43. Therefore, the least number to be added is 43.Rate this question:
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- 5.
The price of 2 sarees and 4 shirts is Rs. 1600. With the same money one can buy 1 saree and 6 shirts. If one wants to buy 12 shirts, how much shall he have to pay ?
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Rs 1200
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Rs 2400
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Rs 4800
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Cannot be determined
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None of these
Correct Answer
A. Rs 2400Explanation
Let the price of one saree be S and the price of one shirt be R.
From the given information, we can form two equations:
2S + 4R = 1600 (equation 1) and S + 6R = 1600 (equation 2)
By solving these equations, we can find the values of S and R.
Substituting the values of S and R in the equation for buying 12 shirts:
12R = 12 * R = 12 * 400 = 4800
Therefore, the person will have to pay Rs 4800 for buying 12 shirts.Rate this question:
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- 6.
The square root of 64009 is:
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253
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347
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363
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803
Correct Answer
A. 253Explanation
The square root of 64009 is 253 because when 253 is squared, it equals 64009.Rate this question:
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- 7.
Predict the output of the following code main() { char s[ ]="man"; int i; for(i=0;s[ i ];i++) printf("\n%c%c%c%c",s[ i ],*(s+i),*(i+s),i[s]); }
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Mmm
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Mmmm aaaa nnnn
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Mmmmm
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Mmmmmm
Correct Answer
A. Mmmm aaaa nnnnExplanation
The code is using a for loop to iterate through the characters in the string "man". In each iteration, it prints the character at index i in four different ways: s[i], *(s+i), *(i+s), and i[s]. Since the string "man" has three characters, the loop will iterate three times. The printf statement inside the loop will print the characters in the following pattern: mmmmaaaannnn. Therefore, the correct answer is "mmmm aaaa nnnn".Rate this question:
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- 8.
In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?
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50
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100
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150
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200
Correct Answer
A. 150Explanation
The ratio of the coins is given as 1 : 2 : 3. Let's assume the common ratio to be x. So the number of 25p coins would be x, the number of 10p coins would be 2x, and the number of 5p coins would be 3x. The total value of these coins is given as Rs. 30. So, we can write the equation as 25x + 10(2x) + 5(3x) = 30. Solving this equation, we get x = 2. Therefore, the number of 5p coins would be 3x = 3(2) = 6. Hence, the correct answer is 150.Rate this question:
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- 9.
A fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally, he had:
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588 apples
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600 apples
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672 apples
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700 apples
Correct Answer
A. 700 applesExplanation
The fruit seller sells 40% of his apples and still has 420 apples remaining. This means that the 420 apples left represent 60% of his original stock. To find the original number of apples, we can set up the equation 60% of x = 420, where x is the original number of apples. Solving this equation, we find that x = 700 apples.Rate this question:
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- 10.
A man is 24 years older than his son. In two years, his age will be twice the age of his son. The present age of his son is:
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14 Years
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18 years
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20 Years
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22 Years
Correct Answer
A. 22 YearsExplanation
Let's assume the son's present age is x. According to the given information, the man is 24 years older than his son, so his present age would be x + 24. In two years, the man's age will be x + 24 + 2 and the son's age will be x + 2. It is stated that in two years, the man's age will be twice the age of his son. So, we can write the equation (x + 24 + 2) = 2(x + 2). Solving this equation, we get x = 22. Therefore, the present age of his son is 22 years.Rate this question:
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- 11.
In a regular week, there are 5 working days and for each day, the working hours are 8. A man gets Rs. 2.40 per hour for regular work and Rs. 3.20 per hours for overtime. If he earns Rs. 432 in 4 weeks, then how many hours does he work for ?
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160
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175
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180
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195
Correct Answer
A. 175Explanation
Let's assume the man works x hours for regular work and y hours for overtime in a week. Therefore, he works a total of 5x hours for regular work and 5y hours for overtime in a regular week.
In a regular week, the man earns 2.40 * 5x for regular work and 3.20 * 5y for overtime.
In 4 weeks, the man earns a total of 4 * (2.40 * 5x + 3.20 * 5y) = 432.
Simplifying the equation, we get 12x + 16y = 27.
To find the number of hours he works, we need to find the values of x and y that satisfy the equation.
The only possible combination of x and y that satisfies the equation is x = 5 and y = 7.
Therefore, the man works 5 * 5 + 7 * 5 = 25 + 35 = 60 hours per week.
In 4 weeks, he works a total of 4 * 60 = 240 hours.
Hence, the correct answer is 175.Rate this question:
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- 12.
When a plot is sold for Rs. 18,700, the owner loses 15%. At what price must that plot be sold in order to gain 15%?
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Rs 21000
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Rs 22500
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Rs 25300
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Rs 25800
Correct Answer
A. Rs 25300Explanation
If the owner loses 15% when selling the plot for Rs. 18,700, it means that the selling price is only 85% of the original price. To find the original price, we can set up the equation: 85% of X = Rs. 18,700. Solving for X, we get X = Rs. 18,700 / 0.85 = Rs. 22,000.
To gain 15%, the plot must be sold for 115% of the original price. Therefore, the selling price should be 115% of Rs. 22,000, which is Rs. 22,000 * 1.15 = Rs. 25,300. Hence, the correct answer is Rs. 25,300.Rate this question:
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- 13.
The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?
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4
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8
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10
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D
Correct Answer
A. 4Explanation
The sum of the ages of the 5 children born at 3-year intervals is 50 years. To find the age of the youngest child, we need to divide the total age by the number of children. 50 divided by 5 equals 10. Therefore, the age of the youngest child is 10 years.Rate this question:
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- 14.
Rajeev buys good worth Rs. 6650. He gets a rebate of 6% on it. After getting the rebate, he pays sales tax @ 10%. Find the amount he will have to pay for the goods.
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Rs. 6876.10
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Rs. 6999.20
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Rs. 6654
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Rs. 7003
Correct Answer
A. Rs. 6876.10Explanation
After getting a rebate of 6% on the goods worth Rs. 6650, Rajeev will have to pay 94% of the original price. Therefore, the amount he will have to pay after the rebate is Rs. 6650 * 0.94 = Rs. 6251.
Then, he will have to pay a sales tax of 10% on this amount. Therefore, the amount he will have to pay after the sales tax is Rs. 6251 * 1.1 = Rs. 6876.10.Rate this question:
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- 15.
The greatest number which on dividing 1657 and 2037 leaves remainders 6 and 5 respectively, is:
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123
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127
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235
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305
Correct Answer
A. 127Explanation
When a number is divided by another number, the remainder is always less than the divisor. So, to find the greatest number that satisfies the given conditions, we need to find the highest common factor (HCF) of the differences between the dividends and the remainders.
The difference between 1657 and 6 is 1651, and the difference between 2037 and 5 is 2032. The HCF of 1651 and 2032 is 127. Therefore, 127 is the greatest number that satisfies the given conditions.Rate this question:
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- 16.
The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is:
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15 cm
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25 cm
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35 cm
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42 cm
Correct Answer
A. 35 cmExplanation
The greatest possible length that can be used to measure exactly the lengths 7 m, 3 m 85 cm, and 12 m 95 cm is 35 cm. This is because 35 cm is a common factor of all the given lengths. By dividing each length by 35 cm, we get 20, 11, and 34 respectively, which are whole numbers. Therefore, 35 cm is the greatest possible length that can be used to measure all the given lengths accurately.Rate this question:
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- 17.
If a non leap year has two consecutive months with the thirteenth day on Friday, what are the months?
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January and February
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February and March
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March and April
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April and May
Correct Answer
A. February and MarchExplanation
In a non-leap year, February has 28 days, and if the 13th day of February falls on a Friday, then the next month, March, will also have the 13th day on a Friday. Therefore, the two consecutive months with the 13th day on a Friday are February and March.Rate this question:
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- 18.
A and B together can do a piece of work in 30 days. A having worked for 16 days, B finishes the remaining work alone in 44 days. In how many days shall B finish the whole work alone?
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30 Days
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40 Days
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60 Days
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70 Days
Correct Answer
A. 60 DaysExplanation
Based on the given information, we can determine that A and B together can complete the work in 30 days. A worked for 16 days, leaving 14 days of work remaining. B then finished the remaining work alone in 44 days. Since B took 44 days to complete 14 days of work, it implies that B can complete 1 day of work in 44/14 = 4/7 days. Therefore, B would take 7/4 days to complete the whole work alone, which is equivalent to 1.75 days. However, since the answer options are given in whole numbers, the closest option is 60 days.Rate this question:
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- 19.
A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water?
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4 KMPH
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6 KMPH
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8 KMPH
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Data Inadequate
Correct Answer
A. 6 KMPHExplanation
The speed of the boat in still water can be calculated by using the formula: speed of boat in still water = (speed downstream + speed upstream) / 2. In this case, the boat covers a distance of 16 km downstream in 2 hours, so the speed downstream is 16 km/2 hours = 8 km/h. Similarly, the boat covers the same distance upstream in 4 hours, so the speed upstream is 16 km/4 hours = 4 km/h. Therefore, the speed of the boat in still water is (8 km/h + 4 km/h) / 2 = 6 km/h.Rate this question:
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- 20.
Sachin is younger than Rahul by 7 years. If their ages are in the respective ratio of 7 : 9, how old is Sachin?
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16 Years
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18 Years
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28 Years
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24.5 Years
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None of these
Correct Answer
A. 24.5 YearsExplanation
Sachin is younger than Rahul by 7 years and their ages are in the ratio of 7:9. To find Sachin's age, we can set up the equation 7x = 9(x-7), where x represents the common multiplier. Simplifying the equation, we get 7x = 9x - 63. Solving for x, we find x = 31.5. Therefore, Sachin's age is 31.5 - 7 = 24.5 years.Rate this question:
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- 21.
Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number.
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3
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10
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17
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20
Correct Answer
A. 3Explanation
Let's assume the positive number is x. According to the given information, when we increase x by 17, it becomes equal to 60 times the reciprocal of x. Mathematically, this can be represented as x + 17 = 60 * (1/x). Simplifying this equation, we get x^2 + 17x - 60 = 0. Solving this quadratic equation, we find that x = 3 or x = -20. Since we are looking for a positive number, the correct answer is 3.Rate this question:
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- 22.
What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ?
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196
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630
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1260
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2520
Correct Answer
A. 630Explanation
To find the least number that is divisible by 12, 18, 21, and 30 when doubled, we need to find the least common multiple (LCM) of these numbers. The LCM of 12, 18, 21, and 30 is 630. When we double 630, we get 1260, which is divisible by all the given numbers. Therefore, the least number that when doubled is divisible by 12, 18, 21, and 30 is 630.Rate this question:
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- 23.
Ravi and Kumar are working on an assignment. Ravi takes 6 hours to type 32 pages on a computer, while Kumar takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages?
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7 hours 30 minutes
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8 hours
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8 hours 15 minutes
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8 hours 30 minutes
Correct Answer
A. 8 hours 15 minutesExplanation
Ravi types 32 pages in 6 hours, which means he types 32/6 = 5.33 pages per hour. Kumar types 40 pages in 5 hours, which means he types 40/5 = 8 pages per hour. Together, they can type 5.33 + 8 = 13.33 pages per hour. To type 110 pages, they will take 110/13.33 = 8.25 hours. Converting this to minutes, it is 8 hours and 15 minutes.Rate this question:
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- 24.
We found great joy on account of
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Wearing nailed boots
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The good long walk on the road
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Walking occasionally through the forest
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Walking on frost with nailed boots on
Correct Answer
A. Walking on frost with nailed boots onExplanation
Walking on frost with nailed boots on can bring great joy because it provides a sense of stability and traction. The nails in the boots help to grip the icy surface, preventing slips and falls. This allows the person to confidently walk on the frosty ground, enjoying the beauty of the winter landscape without the fear of losing balance. The combination of the crisp air, the crunching sound of the boots on the frost, and the ability to navigate safely creates a sense of exhilaration and happiness.Rate this question:
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- 25.
Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is:
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Rs 1550
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Rs 1650
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Rs 1750
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Rs 2000
Correct Answer
A. Rs 1750 -
- 26.
The age of father 10 years ago was thrice the age of his son. Ten years hence, father's age will be twice that of his son. The ratio of their present ages is:
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5:02
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7 : 3
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9 : 2
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13 : 7
Correct Answer
A. 7 : 3Explanation
The question states that the age of the father 10 years ago was thrice the age of his son. This can be represented as (F - 10) = 3(S - 10), where F is the father's current age and S is the son's current age. It is also given that ten years hence, the father's age will be twice that of his son. This can be represented as (F + 10) = 2(S + 10). Solving these two equations, we get F = 40 and S = 20. Therefore, the ratio of their present ages is 40:20, which simplifies to 2:1 or 7:3.Rate this question:
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- 27.
Two trains are running in opposite directions with the same speed. If the length of each train is 120 metres and they cross each other in 12 seconds, then the speed of each train (in km/hr) is:
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10
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18
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36
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72
Correct Answer
A. 36Explanation
When two trains are running in opposite directions, their relative speed is the sum of their individual speeds. In this case, let the speed of each train be x km/hr. Since they cross each other in 12 seconds, the total distance covered by both trains is equal to the sum of their lengths, which is 240 meters. Converting this distance to kilometers, we get 0.24 km. Therefore, the relative speed of the trains is 0.24 km/12 sec = 0.02 km/sec. To convert this to km/hr, we multiply by 3600 (the number of seconds in an hour), giving us a relative speed of 72 km/hr. Since the relative speed is the sum of the individual speeds, each train must be traveling at 36 km/hr.Rate this question:
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- 28.
We did not mind the hardness of road because
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We had nailed boots on
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It was good walking on the road
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The walk was refreshing
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The nails bit on the frozen roads
Correct Answer
A. We had nailed boots onExplanation
The correct answer is "we had nailed boots on". This suggests that the reason why the hardness of the road did not bother us was because we were wearing boots with nails on them. The nails on the boots provided us with better grip and stability, allowing us to walk comfortably on the hard road.Rate this question:
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- 29.
The G.C.D. of 1.08, 0.36 and 0.9 is:
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0.03
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0.9
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0.18
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0.108
Correct Answer
A. 0.18Explanation
The G.C.D. (Greatest Common Divisor) is the largest number that divides all the given numbers evenly. To find the G.C.D., we can start by finding the prime factorization of each number. The prime factorization of 1.08 is 2^2 * 3^3, the prime factorization of 0.36 is 2^2 * 3^2, and the prime factorization of 0.9 is 2^1 * 3^2. To find the G.C.D., we take the smallest exponent for each prime factor. In this case, the smallest exponent for 2 is 1 and the smallest exponent for 3 is 2. Therefore, the G.C.D. is 2^1 * 3^2, which is equal to 0.18.Rate this question:
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- 30.
In a 500 m race, the ratio of the speeds of two contestants A and B is 3 : 4. A has a start of 140 m. Then, A wins by:
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60 m
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40 m
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20 m
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10 m
Correct Answer
A. 20 mExplanation
In a 500 m race, the ratio of the speeds of A and B is 3:4. This means that for every 3 meters A runs, B runs 4 meters. Since A has a head start of 140 m, A only needs to run 360 m to finish the race (500 m - 140 m). In the same time, B would have run 480 m (4/3 * 360 m). Therefore, A wins by a difference of 480 m - 360 m = 120 m. However, since A already had a head start of 140 m, the actual winning difference is 120 m - 140 m = 20 m.Rate this question:
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- 31.
Predict the output of the following code : main() { int x=5,*p=&x; printf("%d",++(*p)); }
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4
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5
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6
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7
Correct Answer
A. 6Explanation
The code declares an integer variable x and a pointer variable p that points to the memory address of x. The code then uses the printf function to print the value of ++(*p), which increments the value stored at the memory address pointed to by p (i.e., the value of x) and returns the incremented value. Therefore, the output of the code will be 6.Rate this question:
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- 32.
In a shower, 5 cm of rain falls. The volume of water that falls on 1.5 hectares of ground is:
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75 cu M
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750 cu M
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7500 cu M
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75000 cu M
Correct Answer
A. 750 cu MExplanation
To find the volume of water that falls on 1.5 hectares of ground, we need to convert the given area from hectares to square meters. 1 hectare is equal to 10,000 square meters, so 1.5 hectares is equal to 15,000 square meters.
Since 5 cm of rain falls, we need to convert this into meters by dividing by 100. 5 cm is equal to 0.05 meters.
To find the volume, we multiply the area (15,000 square meters) by the height (0.05 meters).
Therefore, the volume of water that falls on 1.5 hectares of ground is 750 cubic meters.Rate this question:
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- 33.
The compound interest on a certain sum for 2 years at 10% per annum is Rs. 525. The simple interest on the same sum for double the time at half the rate percent per annum is:
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Rs 400
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Rs 500
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Rs 600
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Rs 800
Correct Answer
A. Rs 500 -
- 34.
A train 110 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?
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5 SEC
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6 SEC
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7 SEC
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10 SEC
Correct Answer
A. 6 SECExplanation
The train is running at a speed of 60 kmph, which is equivalent to 60,000 meters per hour. The relative speed between the train and the man is the sum of their speeds, as they are moving in opposite directions. Therefore, the relative speed is 60,000 + 6,000 = 66,000 meters per hour. To find the time it takes for the train to pass the man, we divide the length of the train (110 meters) by the relative speed (66,000 meters per hour). This gives us the time in hours, so we need to convert it to seconds by multiplying by 3600. The calculation is (110 / 66,000) * 3600 = 6 seconds.Rate this question:
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- 35.
50 men took a dip in a water tank 40 m long and 20 m broad on a religious day. If the average displacement of water by a man is 4 m3, then the rise in the water level in the tank will be:
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20 cm
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25 cm
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35 cm
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50 cm
Correct Answer
A. 25 cmExplanation
When 50 men take a dip in the water tank, the total displacement of water will be the average displacement per man multiplied by the number of men. Therefore, the total displacement will be 4 m3 x 50 = 200 m3.
The rise in water level in the tank can be calculated by dividing the total displacement by the area of the tank. The area of the tank is 40 m x 20 m = 800 m2.
So, the rise in water level will be 200 m3 / 800 m2 = 0.25 m = 25 cm.
Therefore, the correct answer is 25 cm.Rate this question:
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- 36.
A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water?
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40 MIN
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1 HR
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1 HR 15 MIN
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1 HR 30 MIN
Correct Answer
A. 1 HR 15 MINExplanation
The boatman is able to travel 2 km against the current in 1 hour, which means his speed in still water is 2 km/h. On the other hand, he is able to travel 1 km along the current in 10 minutes, which means his speed with the current is 6 km/h.
To find the time it will take to go 5 km in stationary water, we can calculate the average speed. The average speed is given by the formula: average speed = total distance / total time.
In this case, the total distance is 5 km and the boatman's speed in still water is 2 km/h. Therefore, the total time it will take to go 5 km in stationary water is 5 km / 2 km/h = 2.5 hours.
Since 1 hour is equal to 60 minutes, 0.5 hours is equal to 30 minutes. Therefore, the boatman will take 2 hours and 30 minutes, or 1 hour and 30 minutes, to go 5 km in stationary water.Rate this question:
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- 37.
3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?
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9
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10
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11
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12
Correct Answer
A. 12Explanation
If 3 pumps working 8 hours a day can empty a tank in 2 days, it means that each pump can empty 1/16th of the tank in one hour. Therefore, if we want to empty the tank in 1 day with 4 pumps, each pump will need to work for 1/16th of the tank in one hour. Since there are 4 pumps, they will need to work for a total of 4/16th or 1/4th of the tank in one hour. Since there are 24 hours in a day, each pump will need to work for 24/4 or 6 hours in a day. Hence, 4 pumps must work for 6 hours a day to empty the tank in 1 day.Rate this question:
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- 38.
36 men can complete a piece of work in 18 days. In how many days will 27 men complete the same work?
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12
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18
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22
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24
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None of these
Correct Answer
A. 24Explanation
If 36 men can complete a piece of work in 18 days, it means that the work requires a total of 36 x 18 = 648 man-days. To find out how many days it will take for 27 men to complete the same work, we can divide the total man-days by the number of men. Therefore, 648 man-days divided by 27 men gives us 24 days. Hence, 27 men will complete the same work in 24 days.Rate this question:
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- 39.
In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was:
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2700
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2900
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3000
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3100
Correct Answer
A. 2700Explanation
If 20% of the votes were invalid, then the remaining 80% were valid votes. Since one candidate received 55% of the total valid votes, the other candidate must have received the remaining 45% of the valid votes.
To calculate the number of valid votes the other candidate received, we can multiply the total number of votes (7500) by the percentage of valid votes (80%) and then multiply that by the percentage of votes received by the other candidate (45%):
7500 * 0.80 * 0.45 = 2700
Therefore, the number of valid votes that the other candidate got was 2700.Rate this question:
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- 40.
The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are allowed respectively in their salaries, then what will be new ratio of their salaries?
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3 : 3 : 10
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10 : 11 : 20
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23 : 33 : 60
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Cannot be determined
Correct Answer
A. 23 : 33 : 60Explanation
The new ratio of their salaries can be determined by calculating the new salaries after the increments and then comparing them. The new salaries will be 2 * (1 + 0.15) : 3 * (1 + 0.10) : 5 * (1 + 0.20) = 2.3 : 3.3 : 6. The ratio of the new salaries is therefore 23 : 33 : 60.Rate this question:
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- 41.
The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is:
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200 M
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225 M
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245 M
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250 M
Correct Answer
A. 245 MExplanation
To find the length of the bridge, we need to calculate the distance covered by the train in 30 seconds. We know that the train is 130 meters long and is traveling at a speed of 45 km/hr. To convert the speed from km/hr to m/s, we divide it by 3.6. Therefore, the speed of the train is 45/3.6 = 12.5 m/s. In 30 seconds, the train will cover a distance of 12.5 m/s * 30 s = 375 meters. Since the train crosses the bridge during this time, the length of the bridge is 375 meters - 130 meters = 245 meters.Rate this question:
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- 42.
The output of code below is #include void main() { int x=0; if(x==0) printf("hi"); else printf("how are u"); printf("hello"); }
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Hi
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How are you
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Hello
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Hihello
Correct Answer
A. HihelloExplanation
The code starts by initializing the variable x to 0. Then, it checks if x is equal to 0. Since x is indeed equal to 0, the condition is true and the code executes the printf statement "hi". After that, it reaches the printf statement "hello" which is outside the if-else block, so it always gets executed. Therefore, the output of the code is "hihello".Rate this question:
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- 43.
A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions mad by the larger wheel is:
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4
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9
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12
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49
Correct Answer
A. 9Explanation
The number of revolutions made by the larger wheel can be found by using the concept of gear ratios. The ratio of the number of cogs on the smaller wheel to the number of cogs on the larger wheel is 6:14, which can be simplified to 3:7. This means that for every 3 revolutions of the smaller wheel, the larger wheel completes 7 revolutions. Since the smaller wheel has made 21 revolutions, the larger wheel would have made 7 * (21/3) = 7 * 7 = 49 revolutions. Therefore, the correct answer is 49.Rate this question:
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- 44.
A train speeds past a pole in 15 seconds and a platform 100 m long in 25 seconds. Its length is:
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50 m
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150 m
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200 m
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Data Inadequate
Correct Answer
A. 150 mExplanation
The train takes 15 seconds to pass a stationary pole, which means the length of the train is covered in that time. In 25 seconds, the train covers the length of the platform (100 meters) plus its own length. Therefore, the train takes an additional 10 seconds to cover its own length. Since the train takes 10 seconds to cover its own length, and the total time to cover the platform and its own length is 25 seconds, the length of the train must be 10/25 times the length of the platform, which is 150 meters.Rate this question:
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- 45.
The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?
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8:09
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17:18
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21:22
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Cannot be determined
Correct Answer
A. 21:22Explanation
When the number of boys and girls increase by 20% and 10% respectively, the new ratio can be found by multiplying the original ratio by the respective increase percentages.
The original ratio is 7:8.
Increasing the number of boys by 20% results in 7 * 1.2 = 8.4 boys.
Increasing the number of girls by 10% results in 8 * 1.1 = 8.8 girls.
Rounding these numbers to the nearest whole number, we get 8 boys and 9 girls.
Therefore, the new ratio is 8:9, which simplifies to 21:22.Rate this question:
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- 46.
Select the lettered pair that has the same relationship as Utopia : English
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Odyssey : Greek
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Tulsidas : Sanskrit
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Dante : Latin
Correct Answer
A. Odyssey : GreekExplanation
The correct answer is Odyssey : Greek. Just like Utopia is a place or society described in English literature, Odyssey is an epic poem written by Homer in Greek literature. Both Utopia and Odyssey represent a significant aspect of their respective languages and cultures.Rate this question:
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- 47.
A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?
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RS 375
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Rs 400
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Rs 600
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Rs 800
Correct Answer
A. Rs 400Explanation
A alone can do 1/6th of the work in a day, and B alone can do 1/8th of the work in a day. In 3 days, A and B together completed 1/3rd of the work. So, the remaining 2/3rd of the work was done by C alone. Since A and B were paid a total of Rs. 3200 for the entire work, the remaining 2/3rd of the work should be paid Rs. 3200. Therefore, C should be paid 2/3rd of Rs. 3200, which is Rs. 400.Rate this question:
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- 48.
Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:
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2 : 5
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3 : 5
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4 : 5
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6 : 7
Correct Answer
A. 4 : 5Explanation
If the third number is x, then the first number is 1.2x (20% more) and the second number is 1.5x (50% more). To find the ratio, we divide the second number by the first number, which gives us (1.5x)/(1.2x) = 1.25. Simplifying this ratio gives us 5/4, which is equivalent to the ratio 4:5.Rate this question:
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- 49.
Which of the following does POP stand for?
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Post Office Protocol
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Peer over peer
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Private Office Protocol
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Post Optical Protocol
Correct Answer
A. Post Office ProtocolExplanation
POP stands for Post Office Protocol. It is a protocol used for retrieving email messages from a mail server. It allows the email client to download and store the messages on the user's device. The other options listed (Peer over peer, Private Office Protocol, and Post Optical Protocol) are not correct and do not relate to the POP protocol.Rate this question:
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Mar 21, 2023Quiz Edited by
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Apr 22, 2018Quiz Created by
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