A committtee of three people is to be chosen from 4 married couples. The number of committees that can be made such that it consists one woman and two men except that a husbnd and wife both cannot serve on the committee is (A) 2 (B) 4 (C) 8 (D) 12

A committee of 5 people is to be selected from 6 men and 9 women. If the selection is made randomly, what is the probability that the committee consists of 3 men and 2 woman?

A committee of 4 persons is to be formed from 2 ladies 2 old man and 4 youngmen such that it includes at least 1 lady, at least one old man and at most 2 youngmen. Then the total number of ways in which this committee can be formed is

The number of ways in which a mixed double game can be arranged from amongst 5 maried couples if at least one husband and wife play in the same game (A) 200 (B) 140 (C) 60 (D) none of these

A committee of 4 persons has to be chosen from 8 boys and 6 girls, consisting of at least one girl. Find the probability that the committee consists of more girls than boys.

The number of committees of 5 persons consisting of at least one female number, that can be formed from 6 males and 4 females, is

A committee of three persons is to be randomly selected from a group of three men and two women and the chair person will be randomly selected from 2 woman and 1 men for the committee. The probability that the committee will have exactly two woman and one man and that the chair person will be a woman, is

The number of binary operations that can be defined on a set of 2 elements is (a) 8 (b) 4 (c) 16 (d) 64

The number of ways in which a committee of 3 women and 4 men be chosen from 8 women and 7 men. If Mr. X refuses to serve on thcommittee of Mr. Y is a member of the committee is

The number of ways of choosing a committee of 4 women and 5 men from 10 women and 9 men, if Mr. A refuses to serve on the committee when Ms. B is a member of the committee, is

The mean deviation of the numbers 3,4,5,6,7 from the mean is(a) 25 (b) 5 (c) 1.2 (d) 0