Three persons work independently on a problem. If the respective probabilities that they will solve it are 1/3, 1/4 and 1/5, then find the probability that none can solve it.

a problem on mathematics is given to three students A,B,C whose probabilities of solving it are 1/3,2/5and 3/4 . Find the probability that the problem is solved.

The probability of hitting a target by three marksmen are 1/2, 1/3 and 1/4. Then find the probability that no one will hit the target when they fire simultaneously.

A problem in mathematics is given to three students A, B and C and their respective probability of solving the problem is (1)/(2),(1)/(3) and (1)/(4) . Then the probability that the problem is solved, is -

The probabilities of three mutually exclusive events are 2/3, 1/4, and 1/6. Is this statement correct?

Four persons independently solve a certain problem correctly with probabilities, 1/2,3/4,1/4,1/8 Then the probability that problem is solved correctly by at least one of them is-

A problem on mathematics is given to three students A, B, C whose probabilities of solving it are (1)/(3), (2)/(5) and (3)/(4) respectively. Find the probability that the problem is solved.

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 (i) the problem is solved (ii) exactly one of them solves the problem.

A problem in mathematics is given to three students A ,B ,C and their respective probability of solving the problem is 1/2, 1/3 and 1/4. Probability that the problem is solved is 3//4 b. 1//2 c. 2//3 d. 1//3

Four person independently solve a certain problem correctly with probabilities 1/2,3/4,1/4,1/8dot Then the probability that he problem is solve correctly by at least one of them is (235)/(256) b. (21)/(256) c. 3/(256) d. (253)/(256)

The probabilities of A , B and C solving a problem independently are respectively (1)/(4) , (1)/(5) , (1)/(6) . If 21 such problems are given to A , B and C then the probability that at least 11 problems can be solved by them is