A and B aim a target. The Probability that A hits the target is 5/7 and B hits the target in 7/10. What is the probability that exactly one of them hits the target ?
21/10
29/70
31/70
33/70
Correct Option: B
Required probability = P(A). P(B) + P (A ) . P(B) = 5/7 . 3/10 + 2/7 . 7/10 = 29/70
