In a room, there are 6 couples .Out of them if 4 are chosen at random the probability that they may be 2 couples is

Out of 20 consecutive numbers, two are chosen at random, the probability that their sum is odd is

Out of 40 consecutive integers,two are chosen at random,the probability that their sum is odd is

Out of 20 consecutive numbers, two are chosen at random, the probability that their sum is odd is

Out of 40 consecutive integers, two are chosen at random, the probability that their sum is odd is

From each of three married couples one of the partners is selected at random.Find the probability that the selection consists of two men and a woman.

(b)From each of the four married couples,one of the partners is selected at random.Find the probability that those selected are of the same sex.

Out of 30 consecutive natural numbers, 2 are chosen at random. The probability that their sum is odd is -