A book-shelf can accommodate 6 books from left to right. If 10 identical books o

Question

A book-shelf can accommodate 6 books from left to right. If 10 identical books on each of the languages A,B,C and D are available, In how many ways can the book shelf be filled such that book on the same languages are not put adjacently.

Options:

A . 40P6 × 6!

B . 6P4 × 2!

C . 10 × 95

D . 4 × 35

Answer: Option D

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