Question

Your sock drawer only contains 18 white socks and 18 blue socks. How many

times do you need to reach inside the drawer and take out a sock to guarantee a
matching pair?

Answer 1

3 socks

Explanation:

If the first 2 socks are the same, that means you have a matching pair.

If the first 2 socks are different, then no matter what the third sock is, it will always matches one of the first 2 socks.