Permutations And Combinations Question 303

Question: Eleven books consisting of 5 Mathematics, 4 Physics and 2 Chemistry are placed on a shelf. The number of possible ways of arranging them on the assumption that the books of the same subject are all together is [AMU 2002]

Options:

A) 4! 2!

B) 11!

C) 5! 4! 3! 2!

D) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

  • Possible ways = $ 5!.4!.3!.2! $ .