Famous Probability Problem

Famous Probability Problem - 23 January

You are offered an opportunity of winning a fortune. There are 100 precious black stones and 100 unworthy white stones. There are two different sacks labelled as 'Heads' and 'Tails'. You can distribute the stones as per you wish. Then a coin will be flipped. Then you will have to choose a stone from the corresponding sack. If you pick up a black stone, all the fortune of black stones is yours but if you pick up white, you get nothing.

How will you distribute the stones so that you can maximize your chances of winning?

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Tough Probability Interview Question

Tough Probability Interview Question - 20 November

There is a country where everyone wants a boy. Every family continue to have babies till a boy is born. If the probability of having a girl or a boy is the same, what is the proportion of boys to girls after some time in that country ?

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Tricky Probability Interview Puzzle

Tricky Probability Interview Puzzle - 21 August

I have two coins.
* One of the coin is a faulty coin having tail on both side of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blind fold myself and pick a coin and put the coin on table. The face of coin towards the sky is tail.

What is the probability that other side is also tail ?

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Monday Probability Problem

Monday Probability Problem - 13 August


What is the probability of getting five Monday in a 31-days month ?


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Hard Logic Probability Puzzle

Hard Logic Probability Puzzle - 11 July

Bruna was first to arrive at a 100 seat theater.
She forgot her seat number and picks a random seat for herself.

After this, every single person who get to the theater sits on his seat if its available else chooses any available seat at random.
Neymar is last to enter the theater and 99 seats w
ere occupied.

Whats the probability what Neymar gets to sit in his own seat ?

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Dice Probabilty Puzzle

Dice Probabilty Puzzle - 1 July

I throw two dice simultaneously.

What is the probability of getting sum as 9 of the two numbers shown ?

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Probability Riddle

Probability Riddle - 2 May

what's the probability of getting a king or a queen from a pack of 52 cards ?

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Oracle Probability Interview Question

Oracle Probability Interview Question - 28 March

What is the probability of choosing the correct answer at random from the options below.

a) 1/4
b) 1/2
c) 1
d) 1/4

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