Tag: math & puzzles

Questions Related to math & puzzles

A zookeeper counted the heads of the animals in a zoo and found it to be 80. When he counted the legs of the animals he found it to be 260. If the zoo had either pigeons or horses, how many horses were there in the zoo?

general knowledge math & puzzles

  1. 40

  2. 30

  3. 50

  4. 60

Show answer
Correct Option: C

The price of a cycle is reduced by 25 per cent. The new price is reduced by a further 20 per cent. The two reductions together are equal to a single reduction of
general knowledge math & puzzles

  1. 45 %

  2. 40 %

  3. 35 %

  4. 30 %

Show answer
Correct Option: B

The number 0.127 is how much greater than 1/8 ?

general knowledge math & puzzles

  1. 1/2

  2. 2/10

  3. 1/50

  4. 1/500

Show answer
Correct Option: D

AI Explanation

To find out how much greater the number 0.127 is compared to 1/8, we subtract 1/8 from 0.127.

0.127 - 1/8 = 0.127 - 0.125

To subtract these two numbers, we need to find a common denominator. The common denominator of 8 and 125 is 1000.

So, we have:

0.127 - 0.125 = 127/1000 - 125/1000

Now, we can subtract the numerators:

0.127 - 0.125 = (127 - 125)/1000

Simplifying the numerator:

0.127 - 0.125 = 2/1000

Simplifying the fraction:

0.127 - 0.125 = 1/500

Therefore, the number 0.127 is 1/500 greater than 1/8.

The correct answer is D) 1/500.

7 months of the year have 31 days; how many have 28?

general knowledge math & puzzles

  1. 5

  2. 1

  3. 10

  4. 12

Show answer
Correct Option: D

The Smith family has a Mother, Father and 7 daughters. Each daughter has 1 brother. How many people are in the family?

general knowledge math & puzzles

  1. 15

  2. 16

  3. 10

  4. 9

Show answer
Correct Option: C

rt>0 col A: (3t+4r)/rt col B: (3t+4r)/(r+t) Which Column is greater?

general knowledge math & puzzles

  1. Col A

  2. Col B

  3. both are equal.

  4. can't be determained.

Show answer
Correct Option: D

AI Explanation

To determine which column is greater, let's simplify the expressions in each column.

Column A: (3t+4r)/rt Column B: (3t+4r)/(r+t)

To compare the two columns, we can cross-multiply and compare the resulting expressions.

For Column A: (rt) * (3t+4r) = 3t^2r + 4r^2

For Column B: (r+t) * (3t+4r) = 3t^2 + 7rt + 4r^2

As we can see, the expressions in Column A and Column B are not equal. Therefore, we cannot determine which column is greater without additional information.

Hence, the correct answer is D.

The digit in the unit's place of a number is equal to the digit in the ten's place of half of that number and the digit in the ten's place of that number is less than the digit in the unit's place of half of that number by 1. If the sum of the digits of the number is 7, then what is the number?

general knowledge math & puzzles

  1. 34

  2. 52

  3. 162

  4. data inadequate

Show answer
Correct Option: B

If x equals the product of two consecutive integers, which are also single-digit prime numbers, which of the following is not the product of two consecutive integers?

general knowledge math & puzzles

  1. 2X

  2. 5X

  3. 12X

  4. 7X

  5. 6X

Show answer
Correct Option: C

A number when divided by 7 leaves remainder 3 then which of the following is exactly divisible by 49? ("^" means power)
general knowledge math & puzzles

  1. (n^2)-2

  2. (n^2)-3

  3. (n-2)^2

  4. (n-3)^2

  5. (n-4)^2

Show answer
Correct Option: D

rt>0 col A: (3t+4r)/rt col B: (3t+4r)/(r+t) Which Column is greater?
general knowledge math & puzzles

  1. Col A

  2. col B

  3. both are equal

  4. can't be determined

Show answer
Correct Option: D