A takes twice as much time as B or thrice as much time as C to finish a piece of work . Working together , they can finish the work in 2 days . B can do the work alone in :
A takes twice as much time as B or thrice as much time as C to finish a piece of work . Working together , they can finish the work in 2 days . B can do the work alone in : Correct Answer 6 days
Let's assume, A can do the work in x days B can do the work in x/2 days C can do the work in x/3 days Together they in 1 day do = ( 1/x + 2/x + 3/x) portion Now, 1/x + 2/x + 3/x = 1/2 1 + 2 + 3/x = 1/2 x = 12 B can do the work in = 12/2 = 6 days