Saved Bookmarks
| 1. |
A and B can finish a work in 20 days. A alone can do 15th of the work in 12 days. In how many days can B alone do it? |
|
Answer» A and B can finish a work in 20 days. A alone can do 15th of the work in 12 days. In how many days can B alone do it? |
|