Suresh keeps all his socks in a single drawer. He has 24 pairs of white socks and 18 pairs of grey socks. Suresh picks 3 socks randomly. Find the possibility of Suresh choosing a matching pair.

Answer: Option D

Since a pair has 2 socks in it and there are just two colors - white and grey, when Suresh chooses 3 socks, he will surely select 2 socks of same color - be it grey or white.
So possibility = probability = 1