Question

A child has 6 pockets. In how many ways, he can put 5 marbles in his pocket?

Answer 1

The first marble can be put into the pockets in 6 ways, 

i.e. Choose 1 Pocket From 6 by ⁶C₁ = 6 

Similarly second, third, Fourth, fifth & Sixth marble. Thus, the number of ways in which the child can put the marbles is 6⁵