Two boys in a row - One puzzle a day - Puzzle Buddies

Puzzle: A woman has two children. One of them is a boy. What is the probability that the other child is also a boy.

Solution: The natural answer to this is 1/2 as the second child can be either Boy or Girl so the probability of boy is 1/2. But this solution is wrong as there can be following cases when there are two children


1. Boy - Boy
2. Boy - Girl
3. Girl - Boy


so the probability is 1/3.


Winner: no winners this time. better luck next time.