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Question Number 133995 by mr W last updated on 26/Feb/21

$$inhowmanywayscannmenand$$$$nwomenbearrangedinarowsuch$$$$thatmenandwomenalternate?$$

Commented by benjo_mathlover last updated on 26/Feb/21

$$=2\times \mathrm{n}!\times \mathrm{n}!=2\times {(\mathrm{n}!)}^2$$$$\mathrm{example}\{\begin{array}{l}3\mathrm{women}\\ 3\mathrm{men}\end{array}$$$$\mathrm{MWMWMW}=3!\times 3!$$$$\mathrm{WMWMWM}=3!\times 3!$$$$\mathrm{totally}=2\times 3!\times 3!$$

Commented by mr W last updated on 26/Feb/21

$$thanks!$$

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