If 3 persons can do 3 times of a particular work in 3 days, then, 7 persons can do 7 times of that work in	Pick one:
A) 2 days B) 3 days C) 5 days D) 7 days E) 9 days
That is, 1 person can do one time of the work in 3 days.   Therefore, 7 persons can do 7 times work in the same 3 days itself.   3 days)
<result>B</result>
If 3 persons can do 3 times of a particular work in 3 days, then, 7 persons can do 7 times of that work in