NIMCET 2016 Question Paper with solutions

Question : 91 of 120

Marks: +1, -0

There are 4 books on fairly tales, 5 novels and 3 plays. In how many ways can they be arranged in the order, books on fairly tales, novels and then plays so that the books of the same category are put together ?

17280
103680
51840
360

Validate

Solution:

Books on fairy tales can be arranged in 4! ways novels can be arranged in 5! ways
Books on plays can be arranged in 3! ways.
Number of arrangement in which fairy tales books are arranged first, then novels and after that books on plays

=4!×5!×3!

=24×120×6=17280

Go to Question:

Prev Question

Next Question