In how many ways can Rs. 16 be divided into 4 persons when none of them gets less than Rs. 3?

In how many ways 10 persons can be divided into 5 pairs?

In how many ways 100 persons can be divided into 50 pairs ?

In how many ways can 12 things be equally divided among 4 persons ?

In how many ways can 12 books be divided in 3 students equally?

In how many ways 2 persons can be selected from 4 persons?

In how many ways can n things be given to p persons, when each person casn get any number of things (ngtp).

In how many ways can 4 prizes be distributed among 5 students,when No student gets more than one prize? A student may get any number of prizes? No student gets all the prizes?