Question

Pipe A can fill a tank in 10 minutes, and Pipe B can fill the same tank in 15 minutes. Pipe C can empty the full tank in 30 minutes. All three pipes are opened together when the tank is empty. In how much time will the tank be completely filled?

Q: Answer-Pipe A can fill a tank in 10 minutes, and Pipe B can fill the same tank in 15 minutes. Pipe C can em...

ATQ, Rates tankminute Pipe A 110 Pipe B 115 Pipe C emptying 130 Net rate when all three are open 110 115 130 LCM of 10,15,30 30 330 230 130 3 2 130 430 215 tank per minute Time to fill 1 tank 1 215 152 7.5 minutes.

A 7.5 mins

B 5 mins

C 10 mins

D 1.8 mins

E None of these

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Pipe A can fill a tank in 10 minutes, and Pipe B can fill the same tank in 15 minutes. Pipe C can empty the full tank in 30 minutes. All three pipes are opened together when the tank is empty. In how much time will the tank be completely filled?

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