In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there?
Five player for a cricket team is to be selected from 4 Batsman, 3 Bowlers and 2 All Rounders. In how many ways can the committee be formed if the committee should consists of 2 Batsman, 2 Bowler and 1 All Rounder?
There are 31 students in a class, number of girls is one more then number of guys. We need to form a team of four students. All four in the team cannot be from same gender and number of girls and guys in the team should not be equal. How many ways can such a team be made?
There are 3 boys and 4 girls. We have to arrange any 1 boy at the center and any 2 girls at corners. In how many methods these persons can be arranged.
