Tag: math & puzzles

Questions Related to math & puzzles

If Rohan is sitting on a chair numbered 112, Manaj is sitting on a chair numbered 78 & Neha is sitting on a chair numbered 56 then what's the chair number of Rohit?

  1. 70

  2. 120

  3. 140

  4. 60


Correct Option: C

what's the probability of getting a odd prime number while rolling a fair dice.

  1. 1/6

  2. 1/2

  3. 1/4

  4. 1/3


Correct Option: D

There are 30 red balls, 40 black balls & 60 white balls in a bag in a dark room. How many balls you have to take from the bag to ensure that you have atleast a ball of each colour with you.

  1. 99

  2. 60

  3. 101

  4. 30


Correct Option: C

what's the probability of getting atleast 3 heads out of 4 tosses by a fair coin

  1. 5/16

  2. 1/4

  3. 3/16

  4. 7/16


Correct Option: A

What is the probability of choosing a prime number from the numbers 90 to 100 inclusive?

  1. 1 by 5

  2. 1 by 10

  3. 2 by 10

  4. 1 by 11


Correct Option: D