Question

Pipe A takes 24 minute to fill a tank. Pipe B takes 32 minutes to fill the same
tank. If both the pipes are opened simultaneously, after how much time should
pipe A be closed so that it takes 16 minute to fill the tank.​

Answer 1

Answer:

The rate of filling of water by pipe A =9624=4 units per minute. The rate of filling of water by pipe B ==9632=3 units per minute. Water filled by pipe B = 96 -72 = 24 units. So the time for which it was open =243=8minutes.