Tag: math & puzzles

Questions Related to math & puzzles

Last weekend, I went to play in the nearby park. It was real fun! I rode my new bicycle that Mom had gifted me on my birthday. On reaching the park, I saw that there were a total of 9 bicycles and tricycles. If the total number of wheels was 23, how many tricycles were there?
general knowledge math & puzzles

  1. 2

  2. 3

  3. 6

  4. 5

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Correct Option: D

A tennis championship is played on a knock-out basis, i.e., a player is out of the tournament when he loses a match. How many matches are played in the tournament if 40 players totally participate?
general knowledge math & puzzles

  1. 20

  2. 39

  3. 40

  4. 19

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Correct Option: B

A set of football matches is to be organized in a "round-robin" fashion, i.e., every participating team plays a match against every other team once and only once. If 91 matches are totally played, how many teams participated?
general knowledge math & puzzles

  1. 14

  2. 15

  3. 16

  4. 45

Show answer
Correct Option: A
Explanation:

To determine the number of teams that participated in the football matches, we can use the formula for the number of matches played in a round-robin tournament.

The formula to calculate the number of matches in a round-robin tournament with "n" teams is:

matches = (n * (n - 1)) / 2

Given that 91 matches were played, we can set up the equation:

91 = (n * (n - 1)) / 2

To solve the equation, we can multiply both sides by 2 to eliminate the fraction:

182 = n * (n - 1)

Now, we can try different values for "n" to see which one satisfies the equation:

For n = 14: 182 = 14 * (14 - 1) 182 = 14 * 13 182 = 182

Since n = 14 satisfies the equation, the correct answer is:

A. 14

Herbert takes the underground train to work and uses an escalator at the railway station. If Herbert runs up 6 steps of the escalator, then it takes him 37.5 seconds to reach the top of the escalator. If he runs up 14 steps of the escalator, then it takes him only 25.5 seconds to reach the top. How many seconds would it take Herbert to reach the top if he did not run up any steps of the escalator at all?

general knowledge math & puzzles

  1. 44.5

  2. 45

  3. 46.5

  4. 48

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Correct Option: C

Grandpa: "My grandson is about as many days as my son is weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 160 years. Can you tell me my age in years?"
general knowledge math & puzzles

  1. 98

  2. 96

  3. 94

  4. 92

Show answer
Correct Option: B

Each child in a family has at least 5 brothers and 4 sisters. What is the smallest number of children the family might have?
general knowledge math & puzzles

  1. 9

  2. 10

  3. 11

  4. 12

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Correct Option: C

A mother and father have six sons and each son has one sister. How many people are in that family?
general knowledge math & puzzles

  1. 14

  2. 7

  3. 12

  4. 9

Show answer
Correct Option: D

Grandpa: "My grandson is about as many days as my son is weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 160 years. Can you tell me my age in years?"
general knowledge math & puzzles

  1. 94

  2. 96

  3. 98

  4. 92

Show answer
Correct Option: B

Odd One Out means find the number which is different to other numbers--- 4,27,64,144,625
general knowledge math & puzzles

  1. 625

  2. 27

  3. 64

  4. 4

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Correct Option: B

Odd One Out means find the number which is different to others --- a,e,j,o,u
general knowledge math & puzzles

  1. a

  2. j

  3. e

  4. o

Show answer
Correct Option: B