Mammu wears socks of two
different colours –white and brown. She keeps them all in the same drawer in a
state of complete disorder.
She has altogether 20 white socks
and 20 brown socks in the drawer. Supposing she has to take out the socks in
the dark, how many must she take out to be sure that she has a matching pair?
Answer: Mammu should take
out 3 socks from the drawer because if she takes out only 2 then, both could be
of different colours however the third selection would result in a pair of
white or brown socks.
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