In a relay race there are five teams A, B, C, D and E.
(a) What is the probability that A, B and C finish first, second and third, respectively.
(ii) What is the probability that A, B and C are first three to finish (In any order) (Assume that all finishing orders are equally likely).

.What are A,B,C and D in these conversions ?

In the pelvic girdle of man, A, B, C, D and E respectively represent:

Three players A, B and C toss a coin cyclically in that order (that is A, B, C, A, B, C, A, B,…) till a head shows. Let p be the probability that he coin shows a head. Let alpha, beta and gamma be respectively the probabilities that A, B and C gets the first head. Prove that beta = (1 - p) alpha . Determine, alpha, beta and gamma (in terms of p).

A,B,C are three horses in a race. The probability of A to win the race is twice that of B and probability of B is twice that of C. What are the probability of A,B and C to win the race?

Three horses A, B and C are in a race, A is twice as likely to win as B and B is thrice as likely to win as C. What are their probabilities of winning?

5 boys and 3 girls in a row at random. If a is the probability that all the girls sit together , b is the probability that all the boys sit together and c is the probability that all the boys and all the girls sit together then the ascending order of a,b,c is

Three persons A, B, and C are to speak at a function along with 7 other persons. If the persons speak in random order, the probability that A speak before B and B speak before C is

The first, second and last terms of an A.P. are a, b, c respectively, then the sum to first n terms is

A child has a dice whose six faces show the letters A,B,C,D,E and F. The dice is thrown once. What is the probability of getting D?

A child has a dice whose six faces show the letters A,B,C,D,E and F. The dice is thrown once. What is the probability of getting A?