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Question Number 114343 by toa last updated on 18/Sep/20

$$\mathrm{How}\mathrm{many}\mathrm{ways}\mathrm{can}\mathrm{we}\mathrm{place}5\mathrm{identical}$$$$\mathrm{books}\mathrm{and}\mathrm{another}6\mathrm{identical}\mathrm{books}$$$$\mathrm{on}\mathrm{a}\mathrm{shelf}?$$

Commented by bemath last updated on 18/Sep/20

$$=\frac{11!}{5!.6!}$$

Commented by toa last updated on 18/Sep/20

$$\mathrm{a}\mathrm{little}\mathrm{bit}\mathrm{of}\mathrm{explanation}\mathrm{sir}.$$$$\mathrm{i}\mathrm{mean}\mathrm{the}\mathrm{logic}\mathrm{behind}\mathrm{the}\mathrm{solution}.$$

Commented by JDamian last updated on 18/Sep/20

Repeated permutations expression

Commented by toa last updated on 18/Sep/20

Thank you sir for the explanation

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