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Question Number 121829 by bemath last updated on 12/Nov/20

	Answered by mr W last updated on 12/Nov/20

	$n o e m p t y : 3! = 6$ $o n e e m p t y : 3 \times 2 \times 3 = 18$ $\Rightarrow t o t a l l y 24$
	Commented by bemath last updated on 12/Nov/20

	$w h y s i r ?$
	Commented by mr W last updated on 12/Nov/20

	$n o b o x e m p t y :$ $t o a r r a n g e t h r e e b a l l s t h e r e a r e 3! w a y s .$ $o n e b o x e m p t y :$ $t o s e l e c t t h e e m p t y b o x t h e r e a r e 3$ $w a y s . t o s e l e c t t h e r e m a i n i n g b o x$ $w h i c h c o n t a i n s o n e b a l l t h e r e a r e 2$ $w a y s . t o s e l e c t o n e b a l l t o p u t i t i n t o$ $t h i s b o x t h e r e a r e 3 w a y s .$ $\Rightarrow 3 \times 2 \times 3 = 18 w a y s .$
	Commented by bemath last updated on 12/Nov/20

	$t h a n k y o u s i r$
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