In poker, a pair is formed from two cards of the same rank. A hand with cards is called two pairs if it has two pairs of cards of different ranks, and a fifth card that does not match either pair. (For example, the hand KK338 has two pairs.) How many ways can you be dealt cards and get two pairs? (Assume that we are using a standard deck of cards, and that the order of the cards does not matter.)

ramenmaster28 Jan 3, 2020