In how many different ways the following 5 prizes be distributed among 10 students? First and second in Mathematics; first and second in physics and first in Hindi.

In how many ways can the following prizes be given away to a class of 30 students, first and second in Mathematics, first and second in Physics, first in Chemistry and first in English?

In how many ways can the following prizes be given away to a class of 20 students: first and second in mathematics,l first and second in chemistry, first in physics and first in English?

In how many different ways can 4 prizes be distributed among 10 students ? (Each student being elible for one prize.)

The number of ways in which the following prizes be given to a class of 30 boys, first and second in mathematics, first and second in physics, first in chemistry and first in english ………….. .

A class has 30 students. The followign prizes are to be awarded to the students of the class- first and second in mathematics, first and second in Physics, first in Chemistry and first Biology. If N denote the number of ways in which this can be done, then

A class has 30 students. The followign prizes are to be awarded to the students of the class- first and second in mathematics, first and second in Physics, first in Chemistry and first Biology. If N denote the number of ways in which this can be done, then

The number of ways in which the following prizes be given to a class of 20 boys first and second in mathematics fi first , and second in physics , first in chemistry and firet in english is