A box contains 8 pairs of shoes. If 4 shoes are selected at random then find the probability that exactly one pair of shoe is selected.

A box contains 5 pairs of shoes. If 4 shoes are selected, then the number of ways in which exactly one pair of shoes obtained is

From a heap containing 10 pairs of shoes 6 shoes are selected at random. Find the probability that (i) There is no complete pair in the selected shoes (ii) atleast one correct pair in the selected shoes (iii) 2 correct pairs in the selected shoes.

There are 20 pairs of shoes in a closet. Four shoes are selected at random. The probability that there is exactly one pair is

A bag contains two pairs of shoes.Two shoes are drawn from it.The probability that it is a pair is-

There are 20 pairs of shoes in a closet. Out of them 4 shoes are selected at random. The probability that there is exactly one pair among the 4 shoes is

Out of 4 different pairs of shoes if 4 shoes are selected at random,then the probabilitythat the selection contains,atleast one correct pair is

20 pairs of shoes are there in a closet.Four shoe are selected at random.The probability that the yare pairs is

There are 10 pairs of shoes in a cupboard, from which 4 shoes are picked at random,then find the probability of at least one pair.