Math MCQ: Pipe A can fill a tank in 6 hours. Pipe B empties it in 18 hours. If A works for 3 hours and then both are opened, how long will the tank take to fill completely?

Pipe A can fill a tank in 6 hours. Pipe B empties it in 18 hours. If A works for 3 hours and then both are opened, how long will the tank take to fill completely?

Correct Answer: 6 hours

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WhatsApp+91 99922 70404Math MCQ: Pipe A can fill a tank in 6 hours. Pipe B empties it in 18 hours. If A works for 3 hours and then both are opened, how long will the tank take to fill completely? | Extra Education