# Lets Learn About General Knowledge Maths Quiz

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| By Cambronbill3
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Probability is one of the most fun topics when it comes to mathematics among others. Do you believe that you have a good grip on some math concepts and can tackle any problem posed to you? Take up the fifteen questions below and prove your genius. All the best of luck!

• 1.

### How many leap years will there be between 2000 and 2050?

• A.

12

• B.

11

• C.

15

• D.

13

D. 13
Explanation
Between the years 2000 and 2050, there will be 13 leap years. A leap year occurs every four years, except for years that are divisible by 100 but not divisible by 400. The year 2000 was a leap year, and the next leap year after that is 2004. Following this pattern, there will be 13 leap years in total between 2000 and 2050.

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• 2.

### What are the odds of rolling a dice and having it come up as a six three times in a row?

• A.

1 in 256

• B.

1 in 216

• C.

1 in 6

• D.

1 in 36

B. 1 in 216
Explanation
The odds of rolling a dice and having it come up as a six three times in a row is 1 in 216. This is because there are 6 possible outcomes when rolling a dice (numbers 1 to 6), and the probability of getting a six on each roll is 1/6. To find the probability of all three rolls being sixes, we multiply the individual probabilities together: (1/6) * (1/6) * (1/6) = 1/216.

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• 3.

### What are the odds of rolling two six-sided dice and getting two sixes?

• A.

1 In 6

• B.

1 In 216

• C.

1 In 18

• D.

1 In 36

D. 1 In 36
Explanation
The odds of rolling two six-sided dice and getting two sixes can be calculated by multiplying the probability of rolling a six on one die (1/6) with the probability of rolling a six on the other die (1/6). This gives us a probability of 1/36, meaning that there is a 1 in 36 chance of rolling two sixes.

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• 4.

### What are the odds of rolling two 6-sided dice to the same number (getting doubles)?

• A.

1 In 3

• B.

1 In 216

• C.

1 In 36

• D.

1 In 6

D. 1 In 6
Explanation
The odds of rolling two 6-sided dice to the same number (getting doubles) is 1 in 6 because there are 6 possible outcomes for each dice roll (numbers 1 to 6), and only one of those outcomes will result in doubles (e.g., rolling two 1s, two 2s, etc.). Therefore, the probability of rolling doubles is 1 out of the 6 possible outcomes, which can be simplified to 1 in 6.

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• 5.

### If a library is 46% historical books and 24% fiction, with 105 others, how many books are fiction?

• A.

There Are 84 Fiction Books

• B.

There Are 36 Fiction Books

• C.

There are 108 Fiction Books

• D.

There are 240 Fiction Books

A. There Are 84 Fiction Books
Explanation
Based on the given information, the library is 24% fiction books. If we assume the total number of books in the library to be 100%, then the remaining 76% would be non-fiction books. Since we know that there are 105 other books (non-fiction), we can calculate the total number of books in the library by dividing 105 by 76% (or 0.76). This gives us approximately 138.16 books. To find the number of fiction books, we multiply the total number of books by 24% (or 0.24), which equals approximately 33.18 books. Rounding this number to the nearest whole number, we get 84 fiction books.

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• 6.

### How many sales would a \$7.00 book need to make \$1,000?

• A.

245 Book Sales

• B.

199 Book Sales

• C.

143 Book Sales

• D.

112 Book Sales

C. 143 Book Sales
Explanation
To calculate the number of sales needed to make \$1,000 from a \$7.00 book, divide \$1,000 by \$7.00. The result is approximately 142.86. Since it is not possible to sell a fraction of a book, rounding up to the nearest whole number gives us 143. Therefore, 143 book sales would be needed to make \$1,000.

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• 7.

### What is the number if two-thirds of a number is 20 less than the original number?

• A.

70

• B.

100

• C.

50

• D.

60

D. 60
Explanation
If two-thirds of a number is 20 less than the original number, it means that the original number is 20 more than two-thirds of itself. To find the number, we can set up the equation: (2/3)x = x - 20. By solving this equation, we find that x = 60. Therefore, the number is 60.

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• 8.

### 3 aces are drawn from a deck, what is the probability of drawing the fourth?

• A.

Jan-52

• B.

Feb-50

• C.

Mar-49

• D.

Jan-49

D. Jan-49
Explanation
The given answer "Jan-49" does not provide a direct explanation for the probability of drawing the fourth ace. Without additional information, it is not possible to determine the probability.

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• 9.

### How much would it cost to fill a container that measured 2' x 4' x 3' if gas cost \$2.70/gallon?

• A.

A Little Over \$220

• B.

• C.

Just Under \$65

• D.

Exactly \$713.46

• 10.

### There are 8 people. Each person shakes hand with every other person. How many handshakes were there?

• A.

64

• B.

28

• C.

56

• D.

32

B. 28
Explanation
In a group of 8 people, each person shakes hands with every other person. To find the total number of handshakes, we can use the formula n(n-1)/2, where n is the number of people. Plugging in 8 for n, we get 8(8-1)/2 = 8(7)/2 = 56/2 = 28. Therefore, there were 28 handshakes in total.

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• 11.

### What is the value of x if x(-3) + 6 = -9 ?

• A.

X = -5

• B.

X = 4

• C.

X = 6

• D.

X = 5

D. X = 5
Explanation
To find the value of x, we need to solve the equation x(-3) + 6 = -9. By simplifying the equation, we get -3x + 6 = -9. Subtracting 6 from both sides gives -3x = -15. Dividing both sides by -3, we find that x = 5.

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• 12.

### Which formula determines the center of a circle in the x, y coordinate system?

• A.

X*Y

• B.

X+Y

• C.

X^2+Y^2

• D.

Sqrt(X)+Sqrt(Y)

C. X^2+Y^2
Explanation
The formula X^2+Y^2 determines the center of a circle in the x, y coordinate system. This formula represents the equation of a circle, where (X, Y) represents the coordinates of any point on the circle. By squaring both the x and y coordinates and adding them together, we get a result that represents the distance from the center of the circle to any point on the circle. Therefore, this formula can be used to find the center of the circle by solving for the values of X and Y.

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• 13.

### What are the Measures of Dispersion?

• A.

Mean, Median, Mode

• B.

Range, Variance, Standard Deviation

• C.

Range, Median

• D.

Range, Mode

B. Range, Variance, Standard Deviation
Explanation
The measures of dispersion are used to describe the spread or variability of a dataset. The range is the simplest measure and represents the difference between the highest and lowest values. Variance measures the average squared deviation from the mean, providing information about the overall spread of the data. Standard deviation is the square root of the variance and is commonly used to understand the spread in relation to the mean. Therefore, the correct answer is range, variance, and standard deviation, as these measures provide different perspectives on the dispersion of data.

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• 14.

### If a right triangle has a hypotenuse of 13 ft, which combination could be the lengths of the legs?

• A.

8 Ft And 9 Ft

• B.

8 Ft And 5 Ft

• C.

5 Ft And 12 Ft

• D.

6 Ft And 7 Ft

C. 5 Ft And 12 Ft
Explanation
The lengths of the legs in a right triangle can be determined using the Pythagorean theorem, which states that the square of the hypotenuse is equal to the sum of the squares of the other two sides. In this case, if the hypotenuse is 13 ft, the combination of lengths that satisfies this theorem is 5 ft and 12 ft. By squaring these lengths and adding them together, we get 25 + 144 = 169, which is equal to the square of the hypotenuse (13^2 = 169). Therefore, the combination of 5 ft and 12 ft could be the lengths of the legs.

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• 15.

### What are the Measures of Central Tendency?

• A.

Range, Variance, Standard Deviation

• B.

Mean, Median, Mode

• C.

Mean, Range, Statistics

• D.

Statistics, Probability, Geometry

B. Mean, Median, Mode
Explanation
The measures of central tendency refer to statistical measures that aim to summarize and describe the center or average of a dataset. The mean is calculated by summing all the values and dividing by the total number of values. The median is the middle value when the data is arranged in ascending or descending order. The mode is the value that appears most frequently in the dataset. These measures provide insight into the typical or central value of a dataset and are commonly used in various statistical analyses.

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• Current Version
• Mar 19, 2023
Quiz Edited by
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• May 15, 2015
Quiz Created by
Cambronbill3

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