Five horses are in a race. Mr. A selects two of the horses at random and bets on them. The probability that Mr. A selected the winning horse is (A) `3/5` (B) `1/5` (C) `2/5` (D) `4/5`

Five horses are in race. Mr. X selected two of horses at random and bets on them. The probability that Mr. X selected the winning horse is

In a horse race the odds in favour of three horses are 1 : 2, 1 : 3 and 1 : 4. The probability that one of the horse will win the race is

In a horse race the odds in favour of three horses are 1 : 2, 1 : 3 and 1 : 4. The probability that one of the horse will win the race is

In a horse race the odds in favour of three horses are 1 : 2, 1 : 3 and 1 : 4. The probability that one of the horse will win the race is

(n>=5) persons are sitting in a row.Three of these are selected at random.The probability that no two of the selected persons sit together is

A box has 10 coins. Five have heads on both sides. Three have tails on both sides; two are fair. A coin is chosen at random and tossed. Probability that head appears is (A) 4/5 (B) 2/5 (C) 3/5 (D) 1/5

In a given race,the odds in favour of horses A,B,C,D are 1:3,1:4,1:5,1:6 respectively. The probability that horse C wins the race is

From the set S={1,2,3,4,5} , three digits are selected at random and numbers are formed. The probability that a randomly selected number is divisible by 3 is.

The chance of winning the race of the horse A is 1/5 and that of horse B is 1/6. What is the probability that the race will be won by A or B ?