Question

A student wants to arrange 3 maths, 4 hindi and 5 physics books on a shelf. In how many ways the book can be arranged? how many arrangements are possible if all the books in the same subjects are to be all together?​

Answer 1

Step-by-step explanation:

Number of ways to arrange

mathematics books together=5!

Number of ways to arrange

physics books together=4!

⇒ Total no. of ways=5!×4!×2

=5760

2 ways to arrange math and physics

i.e M P

or P M