Question

In a standard deck of 52 cards, a card is chosen at random. What is the probability of choosing an ace card or a black card?

Answer 1

Given total number of cards = 52

Number of black cards ( including 2 ace cards) = 26

2 more ace cards now left among red cards.

So number of possible events choosing an ace card or black card = 26+2 = 28.

        Therefore, Probability of choosing an ace card or black card

                  = Total possible events/ Total number of cards

                 = 28/52

                 = 7/13

Probability of choosing an ace card or a black card= 7/13