'A' can hit a target four times in 5 shots, 'B' three times in 4 shots and 'C' twice in three shots. They fire a volley.What is the probability that at least two shots hit?

There are four possible combinations of hits amnd misses that satisfy the criteria that at least two are hits. You need to calculate the probability of each one of these 4 possible outcomes, and sum them up. Try uit and post your answer back here - we'll check it for you.