A is 50% as efficient as B.C does half of the work done by A and B together. If C alone does the work in 40 days, then A, B and C together can do the work in: `13 1/3d a y s` b. `15\ d a y s` c. `20\ d a y s` d. 30 days

A is 50% as efficient as B. C does half of the work done by A and B together. If C alone does the work in 20 days, then A, B and C together can do the work in

A does half as much work as B and C does half as much work as A and B together. If C alone can finish the work in 40 days, then all together will finish the work in?

A does half as much work as B, and C does half as much work as A and B together. If C alone can finish the work in 40 days, then all together will finish the work in (B) 15 days (A) 13(1/3) days (D) 30 days (C) 20 days

Working 8 hours a day, 12 men can do a work in 30 days. Working 4 hours a day, 18 men can do the work in 30 d a y s b. 40 d a y s c. 45 d a y s d. 50 d a y s

A can do in one day three times the work done by B in one day. They together finish 2/5 of the work in 9 days. The number of days by which B can do the work alone is a. 30 d a y s b. 90 d a y s c. 100 d a y s d. 120 d a y s

A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in 4 d a y s b. 6 d a y s c. 8 d a y s d. 12 d a y s

A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work is 4 d a y s b. 6 d a y s c. 8 d a y s d. 18 d a y s

To do a piece of work, B takes 3 times as long as A and C together and C twice as long as A and B together. If A, B and C together can complete the works in 10 days, how long would A take alone to complete it? 24 d a y s b. 30 d a y s c. 36 d a y s d. 40 d a y s