Class XI A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one black ball is to be included in the draw? 32 48 64 96 Out of 7 consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed? 21400 210 1050 25200 From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done? 564 645 735 756 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? 864 197 209 194 How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated? 20 45 3 5 Do you really want to submit this quiz? Cancel Submit Quiz