Probability of solving specific problem independently by A and B are `1/2` and `1/3` respectively. If both try to solve the problem independently find the probability that exactly one of them solve the problem.

Probability of solving specific problem independently by A and B are 1/2 and 1/3 respectively. If both try to solve the problem independently, find the probability that the problem is solved.

Probability of solving specific problem independently by A, B and C are 1/2, 1/3 and 1/5 respectively. If all of them try to solve the problem independently then find the probability that problem will be solved.

Probability of solving specific problem independently by A, B and C are 3/7, 1/3 and 2/5 respectively. If all of them try to solve the problem independently then find the probability that problem will be solved.

Probability of A, B and C of solving a problem are (1)/(5), (1)/(6) and (1)/(3) espectively. If they all try to solve the problem then find the probability that exactly one of them will solve the problem.

Probabilities of A, B and C of solving a problem are 1/2, 1 /3 and 1/4 respectively. If they all try to solve the problem then find the probability that exactly one of them will solve the problem.

Probabilities of A, B and C of solving a problem are 1 /4, 1 /3 and 1 /5 respectively. If they all try to solve the problem then find the probability that exactly one of them will solve the problem.

The probability of A and B achieving a target is 1 /2 and 3/5 respectively. If both of them try then find the probability that at least one of them will achieve the target.