Saved Bookmarks
| 1. |
A, B and C can do a piece of work in 24, 30 and 40 days respectively. They startthe work together but Cleaves 4 days before the completion of the work. In howmany days is the work done? |
|
Answer» One day's work of A, B and C = (1/24 + 1/30 + 1/40) = 1/10. C leaves 4 days before completion of the work, which means only A and B work during the last 4 days. Work done by A and B TOGETHER in the last 4 days = 4 (1/24 + 1/30) = 3/10. Remaining Work = 7/10, which was done by A,B and C in the initial number of days. Number of days REQUIRED for this initial work = 7 days. |
|