If 3 boys can do 3 times of a particular work in 3 days, then, 7 boys can do 7 times of that work in  Choose the correct answer.
A) 2 days B) 3 days C) 4 days D) 5 days E) 6 days
That is, 1 boy can do one time of the work in 3 days.   Therefore, 7 boys can do 7 times work in the same 3 days itself.   3 days
<result>B</result>
If 3 boys can do 3 times of a particular work in 3 days, then, 7 boys can do 7 times of that work in