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A man wears socks of two colours ? black and brown. He has altogether 20 black socks and 20 brown socks in a drawer. Supposing he has to take out the socks in the dark, how many must he take out to be sure that he has a matching pair?
1
3
20
39
42
Since there are socks of only two colours, so two out of any three socks must always be of the same colour. Hence, option 2 is the correct answer.
By: Amit Kumar ProfileResourcesReport error
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