Tag: math & puzzles

Questions Related to math & puzzles

What percent is 15 of 26?
general knowledge math & puzzles

  1. 57.7

  2. 60.7

  3. 62.3

  4. 56.2

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Correct Option: A

You have Rs 8 and i have given Rs 2 to you. Calculate the %age increase in your money.
general knowledge math & puzzles

  1. 20

  2. 30

  3. 15

  4. 40

  5. 25

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Correct Option: E

What will be the answer?

general knowledge math & puzzles

  1. 1

  2. 81

  3. 18

  4. NONE

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Correct Option: C

What is the value of X ?
general knowledge math & puzzles

  1. 1

  2. 2

  3. 4

  4. NONE

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Correct Option: D

In a recent examination a class had an average score of 71. Average score of boys is 60 and average score of girls was 80. Which of the following is greater ? Col A: No. of boys who took the test Col B: No. of girls who took the test
general knowledge math & puzzles

  1. Col A

  2. Col B

  3. Both are equal

  4. Can’t be determined

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Correct Option: B

The average of 15 numbers is 8. Out of these the average of 5 of them is 12. Then the sum of remaining numbers is…………..
general knowledge math & puzzles

  1. 6

  2. 60

  3. 45

  4. 8

  5. 10

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Correct Option: B

Gayatri paid Rs:1500 for a computer after receiving 20% discount. Then what is the original price of the computer.
general knowledge math & puzzles

  1. 1875

  2. 2000

  3. 2400

  4. 1800

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Correct Option: A

If 20% of a number is 25. Then 50% of the squares of the individual digits of the original number is…………
general knowledge math & puzzles

  1. 13.50

  2. 12.50

  3. 15.0

  4. 11.25

  5. 13.625

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Correct Option: C

If the product of two integers is odd, Then the sum of those two integers must be ………
general knowledge math & puzzles

  1. Odd number

  2. Even number

  3. Prime number

  4. Divisible by difference of two numbers

  5. Perfect square

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Correct Option: B
Explanation:

To solve this question, the user needs to know that an odd number can only be obtained by adding an odd number of odd numbers. Therefore, the sum of two integers whose product is odd must be an even number.

Now, let's go through each option and explain why it is right or wrong:

A. Odd number: This option is incorrect because the sum of two integers whose product is odd cannot be odd. Adding two odd numbers together results in an even number.

B. Even number: This option is correct. The sum of two integers whose product is odd must be an even number. This is because the product of two odd numbers is odd, and odd + odd = even.

C. Prime number: This option is incorrect because the sum of two integers whose product is odd has nothing to do with prime numbers. Prime numbers are numbers that are only divisible by 1 and themselves.

D. Divisible by difference of two numbers: This option is incorrect because there is no relation between the sum of two integers whose product is odd and the difference of the two numbers.

E. Perfect square: This option is incorrect because there is no relation between the sum of two integers whose product is odd and perfect squares.

Therefore, the answer is:

The Answer is: B. Even number

An odd number added to it self an odd number of times yields

general knowledge math & puzzles

  1. Perfect square

  2. Even number

  3. Odd number

  4. Prime number

Show answer
Correct Option: C

AI Explanation

To answer this question, let's analyze each option:

Option A) Perfect square - This option is incorrect. Adding an odd number to itself an odd number of times does not necessarily result in a perfect square. For example, if we add 3 to itself 3 times, we get 3 + 3 + 3 + 3 = 12, which is not a perfect square.

Option B) Even number - This option is incorrect. Adding an odd number to itself an odd number of times will always result in an odd number. For example, if we add 3 to itself 3 times, we get 3 + 3 + 3 + 3 = 12, which is an odd number.

Option C) Odd number - This option is correct. Adding an odd number to itself an odd number of times will always result in an odd number. For example, if we add 3 to itself 3 times, we get 3 + 3 + 3 + 3 = 12, which is an odd number.

Option D) Prime number - This option is incorrect. Adding an odd number to itself an odd number of times does not necessarily result in a prime number. For example, if we add 3 to itself 3 times, we get 3 + 3 + 3 + 3 = 12, which is not a prime number.

Therefore, the correct answer is option C) Odd number. This option is correct because adding an odd number to itself an odd number of times will always result in an odd number.