Math
posted by Therese .
In selecting an ace, king, queen, and jack from an ordinary deck of 52 cards, how many ways can you choose if the cards must be of different suits? the same suit?

having selected an ace, there are only 3 kings to choose from
Then, only 2 queens and one jack.
So, since there are 4 ways to choose the ace, there are
4*3*2*1 ways to choose from different suits.

How many of each card are the same suit?
So, how many suits are there?