Thursday, November 15, 2007

18) Pat's Matching Pairs

Pat's pulling socks and mittens out of the closet. There are six identical mittens (they can be worn either on the left or the rigth hand) and nine identical-looking socks in the closet.

How many pieces of apparel had to be taken out of the closet in order to be sure to find: 1) a matching pair; 2) 3 identical matching pairs; and 3) 4 pairs of socks?

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