Question

Two cards are drawn from a pack. What
is the probability that the two cards are
of different colours ?​

Answer 1

Answer:

We must assume that half of the cards are red and half are black.

The probability of getting two red cards is 26/52 x 25/51 = 1/2 x 25/51 = 25/102.

Since the number of black cards is the same as the number of reds, the probability of selecting two black cards is also 25/102.

So the probability of selecting two cards of the same color (either both red or both black) is 25/102 + 25/102 = 25/51.