A can do a piece of work in 4 hours, B and C can do it in 3 hours. A and C can do it in 2 hours. How long will B alone take to do it...? Mcqs

A can do a piece of work in 4 hours, B and C can do it in 3 hours. A and C can do it in 2 hours. How long will B alone take to do it...?

(A) 12 hours

(B) 10 hours

(C) 24 hours

(D) 8 hours