Question

A bag contains 9 counters. 4 of the counters are blue. Two counters are taken out of the bag at random. Calculate the probability that at least one of the two counters is blue.

Answer 1

Answer:

6+5/18

Step-by-step explanation:

the probability that both are blue;

4/9 × 3/8 = 6

the probability that only one is blue;

4/9 × 5/8 = 5/18

6 + 5/18

Step-by-step explanation:

hope it helps