Clubs, Spades, Hearts, Diamonds
12 total: jack, queen, king
there are 4 suits, spades, hearts, clubs and diamonds but the cards in one suit are aces, two, three, four, five, six, seven, eigt, nine, ten, jack, queen and king
The probability that all four of the cards are different suits is 13/17 * 13/25 * 13/49 = 2197/20,825 or 10.54982%.
1/13
13