Question:
Two pipe A & B can fill a tank in 15 minutes and 20 minutes respectively. If both pipes are opend together, then after how much time B should be closed so that the tank is full in 10 minutes?
4 | |
8 | |
6 | |
20/3 | |
20/3 |
Answer:
20/3
Last Updated:
08/11/2021 - 03:29