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A Night with Mathematics Trivia Quiz

Maths is a fascinating subject. If you really like numbers then try this quiz. Enjoy!

A multiple-choice quiz by The_Rubiks. Estimated time: 3 mins.

Author
The_Rubiks

Time
3 mins

Type
Multiple Choice

Quiz #
396,256

Updated
Dec 03 21

# Qns
10

Difficulty
Average

Avg Score
7 / 10

Plays
387

One at a Time - Single Page - Timed Game

Question 1 of 10

1. What number you will get if you add the smallest positive even prime number to smallest positive odd number? Hint

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Question 2 of 10

2. Jay has a pizza with 12 slices. He ate 3 of them and gave rest to his friends. What percent of pizza did he distribute among his friends? Hint

66.66%

75%

33.33%

25%

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Question 3 of 10

3. A positive number when multiplied by itself gives 64. What is the number? Hint

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Question 4 of 10

4. 39 is a prime number.

True

False

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Question 5 of 10

5. How many factors does 64 have which are odd? Hint

Five

Zero

One

Two

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Question 6 of 10

6. How many prime numbers are there between 1 and 10? Hint

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Question 7 of 10

7. Which of the following is not a square of any natural number? Hint

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Question 8 of 10

8. John has 16 marbles. Eight of them are white, six of them are black and the rest are red. If I pick up a marble at random, what is the probability that it is a red marble? Hint

0.125

0.75

0.25

0.5

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Question 9 of 10

9. What is the number obtained by adding the smallest composite number to the smallest positive odd number? Hint

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Question 10 of 10

10. If I multiply any odd number by an even number, then the resulting answer will always be odd.

True

False

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Quiz Answer Key and Fun Facts

1. What number you will get if you add the smallest positive even prime number to smallest positive odd number?

Answer: 3

The smallest even prime number is two. The smallest odd number is one. The sum of one and two is equal to three. A prime number is a number which is only divisible by 1 and itself. An odd number is a number which is not perfectly divisible by 2.

2. Jay has a pizza with 12 slices. He ate 3 of them and gave rest to his friends. What percent of pizza did he distribute among his friends?

Answer: 75%

The pizza has 12 slices. If Jay ate 3 of them then he distributed 9 slices to his friends. Now 9 is 75% of 12. Hence 75% is the answer. If you want to know how to calculate percentage then percentage of donated pizza is equal to (9/12)*100 which is equal to 75.

3. A positive number when multiplied by itself gives 64. What is the number?

Answer: 8

A number multiplied by itself gives the square of that number. To find the required number we have to calculate the square root of 64. Square roots of 64 are 8 and -8. The question specifices a positive number, so the answer is 8.

4. 39 is a prime number.

Answer: False

A prime number is a number which is only divisible by 1 and the number itself. 39 is divisible by 1, 3, 13 and 39, hence it is not a prime number. It is a composite number. The numbers by which it is divisible are called its factors.

5. How many factors does 64 have which are odd?

Answer: One

Factors are the numbers which perfectly divide the given number. Factors of 64 are 1, 2, 4, 8, 16, 64. Clearly 1 is the only factor which is odd while rest are even. So one is the answer.

6. How many prime numbers are there between 1 and 10?

Answer: 4

Prime numbers between 1 to 10 are 2, 3, 5, and 7. Hence the total prime numbers between 1 and 10 is four.

7. Which of the following is not a square of any natural number?

Answer: 8

4 is the square of 2. 16 is the square of 4 and 64 is the square of 8. 8 is not a square number. But 8 is the cube of 2.

8. John has 16 marbles. Eight of them are white, six of them are black and the rest are red. If I pick up a marble at random, what is the probability that it is a red marble?

Answer: 0.125

From the above question, we can deduce that there are 2 red marbles. The probability of drawing a red marble from 16 marbles is 2/16 = 1/8 or 0.125.

9. What is the number obtained by adding the smallest composite number to the smallest positive odd number?

Answer: 5

The smallest composite number is 4. The smallest positive odd number is 1. The sum of 1 and 4 is 5. So 5 is the answer.

10. If I multiply any odd number by an even number, then the resulting answer will always be odd.

Answer: False

No matter which number you take, odd or even, multiplying it by an even number will always give an even answer. For example if we multiply seven by six, then the answer is 42 which is even.

Source: Author The_Rubiks

This quiz was reviewed by FunTrivia editor NatalieW before going online.
Any errors found in FunTrivia content are routinely corrected through our feedback system.

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