In how many ways can one choose 4 cards from a normal deck of cards so as to have all suits present?
134
52 cards in a deck -13 cards per suit
First card - let us say from suit hearts = 13C1 =13
Second card - let us say from suit diamonds = 13C1 =13
Third card - let us say from suit spade = 13C1 =13
Fourth card - let us say from suit clubs = 13C1 =13
Total number of ways = 13 * 13 * 13 * 13 = 134