7 noun, 5 verbs and 2 adjectives are written on blackboard.we can form sentence by choosing 1 from each available set without caring it makes sense or not.what is the number of ways of doing this??	Pick one:	A) 420	B) 450	C) 500	D) 520	E) 540
we have to choose one from each set. 1 from 7 nouns and 1 from 5 verbs and 1 from 2 adjectives.   then we have 2 arrange 3 different set in 3! ways.   so,   7c1*5c1*2c1*3!=420   420NSWER:420
<result>A</result>
7 noun, 5 verbs and 2 adjectives are written on blackboard.we can form sentence by choosing 1 from each available set without caring it makes sense or not.what is the number of ways of doing this??