Home Maths Probability Conditional Probability, Baye's Theorem A pair has two children. If one of them is b…
Maths Probability Conditional Probability, Baye's Theorem Single Correct MCQ
Published on: August 13, 2026

A pair has two children. If one of them is boy, then the probability that other is also a boy, is

A
B
C
D
None of these

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The correct answer is:
C

Let probability of a boy in two children

Because cases are

Favourable cases are

The probability that the second child is also boy is

We have to find

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