The probability of hitting a target by three marksmen are 1/2, 1/3 and 1/4. Then find the probabi9lity that one and only one of them will hit the target when they fire simultaneously.

Probability of hitting a targen independently of 4 persons are (1)/(2),(1)/(3),(1)/(4),(1)/(8). Then the probability that target is hit is-

Two men hit at a target with probabilityes (1)/(2) and (1)/(3) respectively. What is the probability that exactly one of the them hits the target.

A is targeting to B,B and C are targeting to A . probability of hitting the target by A,B and C are 2/3,1.2 and 1/3, respectively.If A is hit, then find the Probability that B hits the target and C does not.

The probability of A hitting a target is (4)/(5) and that of B hitting it is (2)/(3) . They both fire at the target. Find the probability that : (i) at least one of them will hit the target (ii) only one of them will hit the target.

The probability of hitting a target in any shot is 0.5 If 10 shorts are fired , find the probability that the target will be hit in an odd number of times .

The probabilities of hitting a target by A, B and C are 3/5,3/4 and 1/3 respectively. If all three hits the target simultaneously then find the probability of hitting the target by the least two of them.

The probability of hitting a target in any shot is 0.2 If 10 shorts are fired , find the probability that the target will be hit at least twice. [ Given: (0.8)^9= 0. 1342]

Probabilities that A, B, C can hit a target are 1/3, 1/4, 1/5 respectively. If they all fire simultaneously, the probability that exactly two of them hit the target is

If probability of hitting a target is 1/10 , Then number of shot required so that probability to hit target at least once is greater than 1/4 .