Permutation and CombinationHard

Question

Number of ways in which 9 different toys be distributed among 4 children belonging to different age groups in such a way that distribution among the 3 elder children is even and the youngest one is to receive one toy more, is:

Options

A.
B.
C. 
D.none

Solution

Here first three children receive 2 each and younger receives 3 toys
then total 3 toys
then total number of distribution is
9C2 . 7C2 . 5C2 . 3C2

Create a free account to view solution

View Solution Free
Topic: Permutation and Combination·Practice all Permutation and Combination questions

More Permutation and Combination Questions

The number 24! is divisible by -...A father with 7 children takes 4 of them at a time to the zoo, as often as he can without taking the same four children ...The number of signals that can be made with 3 flags each of different colour by hoisting 1 or 2 or 3 above the other, is...All the 7 digit numbers containing each of the digits 1, 2, 3, 4, 5, 6, 7 exactly once and not divisible by 5 are arrang...The number of divisors of apbqcrds where a, b, c, d are primes & p, q, r, s ∈ N, excluding 1 and the number itself...