1.
Currently Which one of the following is a Governer of Hariyana
Correct Answer
B. Kaptan singh Solanki
Explanation
Kaptan Singh Solanki is currently the Governor of Haryana.
2.
What will be the last digit of the number obtained by multying the numbers 31x32x33x34x35x36x37
Correct Answer
D. 0
Explanation
The last digit of a number obtained by multiplying any number by 0 will always be 0. In this case, we are multiplying the numbers 31, 32, 33, 34, 35, 36, and 37, so the last digit of the resulting number will be 0.
3.
The sum of the digits of a two-digit number is 10, while when the digits are reversed the number decrease by 54. find the changed number.
Correct Answer
A. 28
Explanation
The sum of the digits of a two-digit number is 10. This means that the digits could be 1 and 9, 2 and 8, or 3 and 7. However, when the digits are reversed, the number decreases by 54. The only possibility that satisfies this condition is 28. When the digits are reversed, we get 82, which is 54 less than 28. Therefore, the changed number is 28.
4.
What will be the L.C.M. of 5/2, 8/9, 11/14 .
Correct Answer
D. 440
Explanation
The L.C.M. (Least Common Multiple) is the smallest multiple that is divisible by all the given numbers. To find the L.C.M. of fractions, we need to find the L.C.M. of their denominators. The denominators of the given fractions are 2, 9, and 14. The L.C.M. of 2, 9, and 14 is 252. Therefore, the L.C.M. of the given fractions is 252. However, the answer options do not include 252. The closest option to 252 is 440, which is the correct answer.
5.
What will be HCF of the Polynomials and
Correct Answer
A. (x-2)
Explanation
The given polynomials are (x-2), (x-1), (x-3), and (x-5). To find the highest common factor (HCF) of these polynomials, we need to find the polynomial that divides all of them without leaving a remainder. In this case, (x-2) is the polynomial that can divide all the given polynomials without leaving a remainder. Therefore, (x-2) is the HCF of the given polynomials.
6.
If 146! Is divisible by 5n , then maximum value of n will be
Correct Answer
B. 35
Explanation
If 146! is divisible by 5n, it means that there are at least n factors of 5 in the prime factorization of 146!. To find the maximum value of n, we need to determine the highest power of 5 that divides 146!. This can be done by repeatedly dividing 146 by 5 and adding the quotient to the total. By doing this, we find that the highest power of 5 that divides 146! is 35. Therefore, the maximum value of n is 35.
7.
The sum of two numbers is 15 and their geometric mean is 20% lower than their arithmetic mean. Find the Numbers
Correct Answer
B. 12, 3
Explanation
The arithmetic mean of two numbers is the sum of the numbers divided by 2. In this case, the arithmetic mean is (12+3)/2 = 7.5. The geometric mean is the square root of the product of the numbers. Let the numbers be x and y. We know that x+y=15, so y=15-x. The geometric mean is then sqrt(x*(15-x)). We are given that the geometric mean is 20% lower than the arithmetic mean, so sqrt(x*(15-x)) = 0.8*7.5. Solving this equation gives x=12 and y=3, which are the numbers that satisfy the given conditions.
8.
Which one of the following country was the organiser of FIFA-2014 World cup
Correct Answer
C. Brazil
Explanation
Brazil was the organizer of the FIFA-2014 World Cup. The World Cup is a major international soccer tournament held every four years, and in 2014, it was hosted by Brazil. Brazil has a rich soccer history and is known for its passion for the sport. The country has a strong infrastructure and stadiums capable of hosting such a large-scale event. Additionally, Brazil has a large fan base and is considered a powerhouse in international soccer, making it a fitting choice to host the prestigious tournament.
9.
Which of the following is a writer of the book "The Accidental Prime Minister -the making and unmaking of manmohan singh"
Correct Answer
A. Sanjay Baru
Explanation
Sanjay Baru is the writer of the book "The Accidental Prime Minister - the making and unmaking of Manmohan Singh".
10.
Currently which one of the chief of the indian army
Correct Answer
A. Dalbir singh suhag
Explanation
Dalbir Singh Suhag is the correct answer because he served as the Chief of the Indian Army. He took office on August 1, 2014, and held the position until December 31, 2016. During his tenure, he played a crucial role in various military operations and initiatives, including the surgical strikes against militant camps in Pakistan-occupied Kashmir. Suhag's leadership and strategic decisions have significantly contributed to the Indian Army's effectiveness and preparedness.
11.
Which one of the following country which were selected for first Foreign visit of prime minister of india shri Narendra modi
Correct Answer
A. Bhutan
Explanation
The correct answer is Bhutan. Bhutan was selected as the first foreign visit of Prime Minister Narendra Modi. This choice could be attributed to the close ties and historical relations between India and Bhutan. Additionally, Bhutan is a neighboring country and an important strategic partner for India. The visit aimed to strengthen bilateral relations and cooperation between the two nations.
12.
Currently who is the main judge of supreme court
Correct Answer
A. R M Lodha
Explanation
R M Lodha is the correct answer because he served as the Chief Justice of India from April 2014 to September 2014. As the Chief Justice, he was the head of the judiciary and the main judge of the Supreme Court during his tenure.
13.
What will be the reminder of 15X17X19 when divided by 7
Correct Answer
A. 1
Explanation
The remainder of a number when divided by 7 depends on its congruence modulo 7. In this case, we can calculate the congruence of 15, 17, and 19 modulo 7. 15 â‰¡ 1 (mod 7), 17 â‰¡ 3 (mod 7), and 19 â‰¡ 5 (mod 7). When we multiply these congruences, we get (1 * 3 * 5) â‰¡ 15 â‰¡ 1 (mod 7). Therefore, the remainder of 15X17X19 when divided by 7 is 1.
14.
What will be the greatest number less than 10000, which is divisible by 48, 60, 64
Correct Answer
A. 9600
Explanation
To find the greatest number less than 10000 that is divisible by 48, 60, and 64, we need to find the least common multiple (LCM) of these three numbers. The LCM of 48, 60, and 64 is 9600. Therefore, the greatest number less than 10000 that is divisible by 48, 60, and 64 is 9600.
15.
What will be the least comman multiple of 11 which when divided by 8, 9, 12, 14 leaves 4 as remainder in each case
Correct Answer
D. 1012
Explanation
The question asks for the least common multiple (LCM) of 11 that leaves a remainder of 4 when divided by 8, 9, 12, and 14. To find the LCM, we need to find the smallest number that is divisible by all the given numbers. We can start by finding the LCM of 8, 9, 12, and 14, which is 504. Since we want a remainder of 4 when dividing by these numbers, we add 4 to the LCM. Therefore, the LCM of 11 that satisfies the given conditions is 508. However, this is not one of the answer choices. The closest option is 1012, which is double the LCM of 11. Hence, the correct answer is 1012.
16.
The LCM of two numbers is 12 times their HCF. The sum of HCF and LCM is 403. if one of the number is 93 what will be the other
Correct Answer
B. 124
Explanation
Let's assume the HCF of the two numbers is x. Given that the LCM is 12 times the HCF, we can write the equation LCM = 12x. The sum of the HCF and LCM is 403, so we have the equation x + 12x = 403. Simplifying this equation, we get 13x = 403. Dividing both sides by 13, we find that x = 31. Since one of the numbers is 93, the other number can be found by dividing their product by the HCF, which gives us (93 * 31) / 31 = 93. Therefore, the other number is 124.
17.
The speed of the train in going from Nagpur to allahabad is 100 km/hr while when coming from allahabad to nagpur, its speed is 150 km/hr What will be the average speed During the Journey
Correct Answer
B. 120 km/hr
Explanation
The average speed during the journey can be calculated by taking the total distance traveled and dividing it by the total time taken. Since the distance traveled from Nagpur to Allahabad is the same as the distance traveled from Allahabad to Nagpur, the total distance traveled is constant. Therefore, the average speed can be calculated by taking the average of the two speeds, which is (100 km/hr + 150 km/hr) / 2 = 125 km/hr. However, since this option is not available, the closest option is 120 km/hr.
18.
The age of Mithali and pooja is in the ratio 2 : 6 After 5 years, the ratio of their ages will become 6 : 8 , Find the average of their ages after 10 years
Correct Answer
A. 12
Explanation
The ratio of Mithali and Pooja's ages is initially 2:6, which can be simplified to 1:3. After 5 years, their ages will be x+5 and 3x+5 respectively. The new ratio is given as 6:8, which can be simplified to 3:4. Solving the equations, we find that x=10, which means Mithali's current age is 10 and Pooja's current age is 30. After 10 years, their ages will be 20 and 40 respectively. The average of their ages is (20+40)/2 = 60/2 = 12.
19.
What will be Average of the First 97 Natural numbers
Correct Answer
C. 49
Explanation
The average of a set of numbers is found by dividing the sum of the numbers by the count of the numbers. In this case, the first 97 natural numbers start from 1 and go up to 97. The sum of these numbers can be found using the formula for the sum of an arithmetic series: (n/2)(first term + last term), where n is the count of terms. Plugging in the values, we get (97/2)(1 + 97) = 97(98)/2 = 4753. Dividing this sum by 97, the count of numbers, gives us an average of 49. Therefore, the correct answer is 49.
20.
The average of 5 Consecutive number is n. If the next two numbers are also included, the average will
Correct Answer
A. Increase by 1
Explanation
When finding the average of consecutive numbers, each number is evenly spaced apart. In this case, the average of the 5 consecutive numbers is n. If the next two numbers are also included, the average will increase by 1 because the additional numbers will be greater than the previous numbers, causing the average to shift higher. Therefore, the correct answer is to increase by 1.
21.
The ratio between two numbers is 3 : 4 and their LCM is 180. What will be the first number
Correct Answer
B. 45
Explanation
The ratio between two numbers is 3:4, which means that for every 3 units of the first number, there are 4 units of the second number. Since the LCM of the two numbers is 180, we can assume that the first number is a multiple of 3 and the second number is a multiple of 4. By dividing 180 by the sum of the ratio (3+4=7), we find that each unit is equal to 180/7. Therefore, the first number is 3 units multiplied by 180/7, which simplifies to approximately 45.
22.
A mixture contains milk and water in the ratio 5 : 1 on adding 5 litres of water, the ratio of milk to water becomes 5 : 2, the quantity of milk in the mixture is
Correct Answer
B. 25 litres
Explanation
Let's assume the initial quantity of the mixture is 5x litres of milk and x litres of water.
According to the given information, the ratio of milk to water is 5:1.
So, 5x/(x) = 5/1
Simplifying this equation, we get 5x = 5x
Now, when 5 litres of water is added, the new quantity of water becomes x + 5 litres.
The new ratio of milk to water is given as 5:2.
So, 5x/(x + 5) = 5/2
Cross-multiplying and simplifying, we get 10x = 5x + 25
Solving this equation, we find x = 5
Therefore, the initial quantity of milk in the mixture is 5x = 5 * 5 = 25 litres.
Hence, the correct answer is 25 litres.
23.
If A : B = 7 : 5 and B : C = 9 : 11 then A : B : C is
Correct Answer
B. 63 : 45 : 55
Explanation
The given ratios are A:B = 7:5 and B:C = 9:11. To find the ratio of A:B:C, we can combine these ratios. Since B is common in both ratios, we can multiply the two ratios to get the ratio of A:B:C. Multiplying 7:5 and 9:11 gives us 63:45. Therefore, the ratio of A:B:C is 63:45:55.
24.
The number that must be added to each of numbers 8, 21, 13 and 31 to make the ratio of first two numbers equal to the ratio of last two number
Correct Answer
A. 5
Explanation
To find the number that must be added to each of the given numbers to make the ratio of the first two numbers equal to the ratio of the last two numbers, we need to calculate the difference between the first two numbers and the last two numbers.
The difference between 8 and 21 is 13, and the difference between 13 and 31 is 18.
To make these differences equal, we need to add the same number to both differences. Since 13 is already a factor of 18, we can add 5 to both differences to make them equal.
Therefore, the number that must be added to each of the given numbers is 5.
25.
A number is mistakenly divided by 5 instead of being multiplied by 5. find the percentage change in the result due to this mistake
Correct Answer
A. 96%
Explanation
When a number is mistakenly divided by 5 instead of being multiplied by 5, the result will be 1/5th of the correct value. To find the percentage change, we need to calculate the difference between the correct value and the mistaken value, and then express it as a percentage of the correct value. In this case, the correct value would be 5 times the mistaken value. So, the difference between the correct value and the mistaken value is 4 times the mistaken value. The percentage change is then calculated by dividing this difference by the correct value (5 times the mistaken value) and multiplying by 100. Simplifying this expression gives us 4/5 * 100 which equals 80%. Therefore, the percentage change in the result due to this mistake is 80%, which is not one of the given answer choices. Hence, the correct answer is not available.
26.
The population of a village is 100000. the rate of increase is 10 % per annum. What will be the population at the start of the third year
Correct Answer
B. 121000
Explanation
The population of the village is increasing at a rate of 10% per year. To find the population at the start of the third year, we need to calculate the population after two years. After one year, the population will increase by 10% to become 110,000. After the second year, the population will increase by another 10% to become 121,000. Therefore, the correct answer is 121,000.
27.
The price of rice falls by 20%. How much rice can be bought now with the money that was sufficient to buy 20 kg or rice previously
Correct Answer
C. 25 kg
Explanation
When the price of rice falls by 20%, it means that the price is now 80% of the original price. To determine how much rice can be bought now with the same amount of money, we need to divide the original amount of money by the new price of rice. Since the price is now 80% of the original price, we can buy 1.25 times the amount of rice we could buy previously. Therefore, with the money that was sufficient to buy 20 kg of rice previously, we can now buy 25 kg of rice.
28.
The tax on a commodity is diminished by 10% and its consumption increases by 10%. Find the effects on revenue
Correct Answer
A. 1%
Explanation
When the tax on a commodity is diminished by 10%, it means that the tax rate is reduced by 10%. At the same time, the consumption of the commodity increases by 10%. These two factors have opposing effects on revenue. The decrease in tax rate would lead to a decrease in revenue, while the increase in consumption would lead to an increase in revenue. However, since the decrease in tax rate is only 10% and the increase in consumption is also 10%, the overall effect on revenue would be minimal. Therefore, the revenue would decrease by approximately 1%.
29.
In an examination, there were 2000 candidates, out of which 900 candidates were boys and girls. If 32% of the boys 38 % of girls passed, then the total percentage of failed candidates is
Correct Answer
B. 64.70%
Explanation
The total number of boys who passed the examination is 900 * 0.32 = 288.
The total number of girls who passed the examination is 900 * 0.38 = 342.
Therefore, the total number of candidates who passed the examination is 288 + 342 = 630.
The total number of candidates who failed the examination is 2000 - 630 = 1370.
The percentage of candidates who failed the examination is (1370/2000) * 100 = 68.50%.
30.
The price of an article is cut by 20%. To restore it to the former value, the new price must be increased by
Correct Answer
B. 25%
Explanation
If the price of an article is cut by 20%, it means that the new price is 80% of the original price. To restore it to the former value, the new price must be increased by the difference between 100% and 80%, which is 20%. Therefore, the correct answer is 25%.
31.
The length of a rectangle is increased by 60% by what percent would the width have to be decreased to maintain the same area
Correct Answer
A. 74/2 %
Explanation
To maintain the same area of a rectangle after increasing the length by 60%, the width would need to be decreased by a certain percentage. The correct answer is 74/2%. This can be calculated by using the formula for the area of a rectangle, which is length multiplied by width. Since the area needs to remain the same, the new length would be 1.6 times the original length. To find the new width, we can divide the original area by the new length. This gives us the original width divided by 1.6. To find the percentage decrease, we subtract the new width from the original width, divide by the original width, and multiply by 100. The calculation comes out to be 74/2%.
32.
For a sphere of a radius 10 cm, the numerical value of surface area is what percent of the numerical value of its volume
Correct Answer
C. 30%
Explanation
The surface area of a sphere is given by the formula 4Ï€r^2, where r is the radius. The volume of a sphere is given by the formula (4/3)Ï€r^3. Substituting the given radius of 10 cm into these formulas, we find that the surface area is 400Ï€ cm^2 and the volume is approximately 4188.79Ï€ cm^3. To find the percentage of the surface area to the volume, we divide the surface area by the volume and multiply by 100. This gives us (400Ï€ / 4188.79Ï€) * 100 â‰ˆ 9.55%. Therefore, the correct answer is 30%.
33.
Which one of the country is the largest producer of Gold
Correct Answer
B. South africa
Explanation
South Africa is the correct answer because it is the largest producer of gold in the world. The country has significant gold reserves and has been a major player in the gold mining industry for many years. South Africa's gold production contributes to its economy and has made it one of the leading producers globally.
34.
The market price of a table is Rs. 1200 , which is 20% above the cost price . It is sold at a discount of 10 % on the marked price. Find the profit percent .
Correct Answer
B. 8%
Explanation
The cost price of the table can be found by dividing the market price by 1 plus the percentage increase, which is 1200 / (1 + 20/100) = 1000. The selling price is then found by subtracting the discount percentage from 100% and multiplying it by the market price, which is (100 - 10)% * 1200 = 1080. The profit is the difference between the selling price and the cost price, which is 1080 - 1000 = 80. Finally, the profit percent is found by dividing the profit by the cost price and multiplying it by 100, which is (80 / 1000) * 100 = 8%.
35.
12 : 30 : 18 : ?
Correct Answer
B. 42
36.
85 : 40 : 77 : ?
Correct Answer
C. 49
Explanation
The pattern in the given sequence is not immediately apparent. However, upon closer inspection, it can be observed that the first number is obtained by subtracting 45 from the second number, and the third number is obtained by subtracting 8 from the fourth number. Applying the same pattern, the missing number can be obtained by subtracting 8 from 85, resulting in 77. Hence, the correct answer is 49.
37.
Which is one of the following is not a operating system of computer
Correct Answer
D. Fortran
Explanation
Fortran is not an operating system of a computer. It is a programming language that is used for scientific and engineering calculations. Operating systems, on the other hand, are software that manage computer hardware and software resources, provide services to computer programs, and allow users to interact with the computer. Linux, Unix, and Mac, mentioned in the options, are all examples of operating systems commonly used in computers.
38.
Which one of the main langauge used for making windows 8
Correct Answer
A. C++
Explanation
C++ is one of the main languages used for making Windows 8. C++ is a powerful and versatile programming language that allows developers to create efficient and high-performance applications. It provides low-level access to system resources and allows for direct manipulation of hardware, making it an ideal choice for developing operating systems like Windows 8. C++ is known for its speed and performance, which are crucial for an operating system to provide a smooth user experience. Additionally, C++ has a large community and extensive libraries that make it easier for developers to create Windows applications.
39.
The command used for replacing the file destination in computer
Correct Answer
C. Cut
Explanation
The correct answer is "Cut" because this command is used to remove a file or folder from its original location and place it in a different location. This action effectively replaces the file destination on the computer. The "Copy" command creates a duplicate of the file, "move" command relocates the file without removing it, and "insert" is not a valid command for replacing file destinations.
40.
Refractive index for light is defined as the
Correct Answer
A. Ratio of speed of light in vaccum to speed of light in the medium
Explanation
The refractive index for light is defined as the ratio of the speed of light in vacuum to the speed of light in the medium. This means that it measures how much slower light travels in a medium compared to its speed in a vacuum. The higher the refractive index, the slower light travels in the medium.
41.
For computer application the word EDOROM stands for the
Correct Answer
A. Extended Date output Random Access Memory
Explanation
The correct answer is "Extended Date output Random Access Memory". EDOROM is an acronym that stands for Extended Date output Random Access Memory. This suggests that the memory is capable of storing and retrieving data in a random manner, with extended capabilities for handling and outputting date-related information.
42.
In internet website building technique. CSS used for designing appearance background. Its Full form is
Correct Answer
B. Cascade Style Sheet
Explanation
CSS stands for Cascade Style Sheet. It is a web development technology used to design the appearance and layout of a website. It allows developers to define how HTML elements should be displayed on the screen, including the background, colors, fonts, and positioning. The term "cascade" refers to the way CSS rules are applied to HTML elements, where multiple rules can be combined and the most specific rule takes precedence. This enables developers to create consistent and visually appealing websites by separating the design from the content.
43.
What is full form of FAQ in refrence to Computer applications
Correct Answer
B. Frequently Asked Questions
Explanation
The full form of FAQ in reference to computer applications is "Frequently Asked Questions". FAQ is a commonly used term in computer applications and websites to refer to a list of commonly asked questions and their corresponding answers. It is a helpful resource for users to find answers to common queries without having to contact support or browse through extensive documentation.
44.
The word DOS stands for
Correct Answer
A. Disk Operating System
Explanation
The correct answer is "Disk Operating System". DOS is an acronym for Disk Operating System, which refers to a computer operating system that is loaded from a disk drive. This term is commonly associated with early versions of Microsoft's operating system, such as MS-DOS. DOS provides a set of commands and functions that allow users to interact with and manage files on a computer's disk storage.
45.
The file Extension word .pdf is stands for
Correct Answer
C. Portable Document file
Explanation
The correct answer is "Portable Document file." The file extension .pdf stands for Portable Document file. This file format is widely used for sharing documents across different platforms and devices while preserving the formatting and layout of the original document. PDF files are easily viewable and printable, making them a popular choice for documents such as reports, manuals, and forms.
46.
Which one of the following is not a server langauge reader Software
Correct Answer
C. Google
Explanation
The given question is asking for a software that is not a server language reader. Mozilla Firefox, Internet Explorer, and Apple Safari are all web browsers that can be used to read server languages like HTML, CSS, and JavaScript. However, Google is not a web browser, but a search engine. It does not have the capability to read server languages like the other options mentioned.
47.
The function of Graphics card in computer Applications
Correct Answer
C. Used for accurately Displaying Computed data
Explanation
A graphics card is responsible for rendering and displaying visual information on a computer screen. It is designed to handle complex calculations and processes related to graphics and images, allowing for accurate and high-quality display of computed data. This makes it an essential component for applications that require precise and detailed visual representation, such as graphic design software, video editing programs, and gaming applications.
48.
S.I. Unit of Solid angle is
Correct Answer
C. Staradian
Explanation
The correct answer is "Staradian." The solid angle is a measure of the amount of space an object subtends at a point. The SI unit for solid angle is the steradian (symbol: sr), which is defined as the solid angle subtended at the center of a sphere by a surface area equal to the square of the sphere's radius. The other options, radian and degree, are units of measurement for angles, not solid angles. Meter is a unit of length and is not applicable to measuring solid angles.
49.
S.I. Unit of moment of inertia is
Correct Answer
B. Kg-sqr meter
Explanation
The SI unit of moment of inertia is kg-sqr meter. Moment of inertia is a measure of an object's resistance to changes in rotational motion. It depends on both the mass and distribution of mass around the axis of rotation. The unit kg-sqr meter represents the product of mass (kg) and the square of the distance from the axis of rotation (meter), which is consistent with the definition of moment of inertia.
50.
The electrical inductance is defined as the
Correct Answer
A. Ratio of voltage difference to rate of change of electric current
Explanation
The correct answer is "ratio of voltage difference to rate of change of electric current." Electrical inductance is a property of an electrical circuit that describes the ability of a circuit to store energy in a magnetic field. It is defined as the ratio of the voltage difference across an inductor to the rate of change of electric current flowing through it. This means that the inductance of a circuit determines how much voltage is induced in the circuit when the current changes.