Tag: math & puzzles

Questions Related to math & puzzles

A rectangle has the dimensions of 14 cm x 10 cm. It's length is reduced by 'x' cm and it's breadth is increased by 'x' cm to make it a square. It's area changes by -
general knowledge math & puzzles

  1. 4

  2. 144

  3. 12

  4. 2

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Correct Option: A

A motorcycle stunts man belonging to a fair, rides over the vertical walls of a circular well at an average speed of 54 kph for 5 minutes. If the radius of the well is 5 meters then the distance traveled(in kilometers) is:
general knowledge math & puzzles

  1. 2.5

  2. 3.5

  3. 4.5

  4. 5.5

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Correct Option: C

Tom, Dick and Harry went for lunch to a restaurant. Tom had $100 with him, Dick had $60 and Harry had $409. They got a bill for $104 and decided to give a tip of $16. They further decided to share the total expenses in the ratio of the amounts of money each carried. The amount of money which Tom paid more than what Harry paid is

general knowledge math & puzzles

  1. 120

  2. 200

  3. 60

  4. 36

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Correct Option: D

A father is three times as old as his son. After fifteen years the father will be twice as old as his son's age at that time. What is the present age of the father?

general knowledge math & puzzles

  1. 36

  2. 42

  3. 45

  4. 48

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Correct Option: C

How many new word can be formed using all the letters of "CONSULTANCY"?

general knowledge math & puzzles

  1. 11!

  2. 9!

  3. (11! / 4) - 1

  4. (11! / 4)

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Correct Option: C

There are total 64 matches in a knock out tournament where the winner, runner & third position holder will be given prizes. Find how many teams are there in that knock out tournament??

general knowledge math & puzzles

  1. 128

  2. 64

  3. 32

  4. 16

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Correct Option: B

How many words can be formed using all the letters in the word "INDIA" so that vowels are always together?

general knowledge math & puzzles

  1. 3

  2. 18

  3. 9

  4. 12

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Correct Option: B

Find the unit digit of the following expression 567^4

general knowledge math & puzzles

  1. 7

  2. 9

  3. 3

  4. 1

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Correct Option: D

the probability of getting 4 heads out of 4 tosses by a fair coin is

general knowledge math & puzzles

  1. 1/4

  2. 1/8

  3. 1/16

  4. 1/2

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Correct Option: C

what's the maximum area of the sqaure which can be fit within a circle having a radius of 5*sqrt(2)?
general knowledge math & puzzles

  1. 10

  2. 40

  3. 40*sqrt(2)

  4. 100

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Correct Option: D