Permutation and CombinationHard
Question
There are four balls of different colours and four boxes of colours same as those of the balls. The number of ways in which the balls, one in each box, could be placed such that a ball does not go to box of its own colour is-
Options
A.8
B.7
C.9
D.None of these
More Permutation and Combination Questions
Between two junction stations A and B there are 12 intermediate stations. The number of ways in which a train can be mad...The number of ways in which at least one coin can be selected from 3 coins of one rupee, 4 coins of fifty paise, 5 coins...Two groups of players consist of 6 and 8 players. In how many ways can a team of 11 players be selected from these two g...5 Indian & 5 American couples meet at a party & shake hands. If no wife shakes hands with her own husband & no Indian wi...A committee of 5 is to be formed out of 6 gents and 4 ladies. In how many ways this can be done when atmost two ladies a...