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

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

Five non-similar pairs of socks are in a closet. Four socks are selected at random. What is the probability that there will be among the four socks chosen no complete pair?

Five non-similar pairs of socks are in a closet. Four socks are selected at random. What is the probability that there will be among the four socks chosen exactly one complete pair?

There are 20 pairs of shoes in a cupboard. Ten shoes are taken at random. The probability that at least four complete pairs are possible from the selected shoes is

There are 20 pairs of shoes in a cupboard. Ten shoes are taken at random. The probability that exactly three complete pairs are possible from the selected shoes is

There are 20 pairs of shoes in a cupboard. Ten shoes are taken at random. The probability that exactly three complete pairs are possible from the selected shoes is

There are 20 pairs of shoes in a cupboard. Ten shoes are taken at random. The probability that no complete pair is possible from the selected shoes is

There are 10 pairs of shoes in a cup board from which 4 shoes are picked at random. The probability that there is atleast one pair is