Question

Pipe A can fill the tank in 10 hours and pipe B can empty the tank in 20 hours. If both the pipe works together then in how much time tank can be emptied?​

Answer 1

Answer:

Part of tank filled in 1 minute when both the pipes are opened together

⇒ (1 / 10) – (1 / 15)

⇒ (3 – 2) / 30

⇒ 1 / 30

Required time = 30 hours

∴ It will take 30 hours to fill a tank.

Step-by-step explanation:

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