Tag: math & puzzles

Questions Related to math & puzzles

Of 1,000 dogs, 72% are male. Among the males, 3 out of 5 were over the age 5. How many of the dogs were males age 5 or older?

general knowledge math & puzzles

  1. 432

  2. 424

  3. 144

  4. 484

Show answer
Correct Option: A

AI Explanation

To answer this question, we need to follow the given information step by step.

First, we are told that 72% of the 1,000 dogs are male. To find the number of male dogs, we can multiply 1,000 by 0.72:

Number of male dogs = 1,000 * 0.72 = 720

Next, we are told that among the male dogs, 3 out of 5 are over the age of 5. To find the number of male dogs age 5 or older, we can multiply the number of male dogs by the fraction 3/5:

Number of male dogs age 5 or older = 720 * (3/5) = 432

Therefore, the correct answer is A) 432.

There are two candles of equal lengths and of different thickness. The thicker one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one. How long ago did Ramesh light the two candles
general knowledge math & puzzles

  1. 7 hours

  2. 3 hours

  3. 4 hours

  4. 2 hours

Show answer
Correct Option: B

A dog takes 4 leaps for every 5 leaps of a hare but 3 leaps of a dog are equal to 4 leaps of the hare. Compare their speeds.
general knowledge math & puzzles

  1. 16:15

  2. 4:1

  3. 21:18

  4. 24:16

Show answer
Correct Option: A

The boys and girls in a school are in the ratio 3 : 7. 25% of the boys and 20% of the girls are scholarship holders.How much per cent of the total students do not get scholarships?
general knowledge math & puzzles

  1. 75.8

  2. 76.5

  3. 78.5

  4. 82.5

Show answer
Correct Option: C

If the diameter of a wire is increased by 10%, by how much per cent approximately, will its length be decreased, if the volume remains the same?
general knowledge math & puzzles

  1. 15

  2. 16

  3. 17

  4. 18

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Correct Option: C

Two trains move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes by him.What is the length (in mts.) of faster train ?

general knowledge math & puzzles

  1. 100

  2. 75

  3. 125

  4. 150

Show answer
Correct Option: B

Of 1,000 dogs, 72% are male. Among the males, 3 out of 5 were over the age 5. How many of the dogs were males age 5 or older?
general knowledge math & puzzles

  1. 432

  2. 424

  3. 144

  4. 484

Show answer
Correct Option: A

3,10,21,44,65,102,?
general knowledge math & puzzles

  1. 131

  2. 132

  3. 133

  4. 134

  5. 135

Show answer
Correct Option: C

1,2,4,8,61,221,244,884,?
general knowledge math & puzzles

  1. 8670

  2. 8672

  3. 8671

  4. 987

  5. 1467

Show answer
Correct Option: C

3,4,7,11,16,29,47,?
general knowledge math & puzzles

  1. 76

  2. 56

  3. 77

  4. 39

  5. 58

Show answer
Correct Option: A