There are two pipes in a tank. Pipe A fills the tank and pipe B empties it. If…
2025
There are two pipes in a tank. Pipe A fills the tank and pipe B empties it. If A can fill the tank in 10 hours and B can empty the tank in 15 hours, how many hours will it take to completely fill a half-empty tank (both pipes working)?
- A.
30 hours
- B.
15 hours
- C.
6 hours
- D.
80 hours
Attempted by 51 students.
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Correct answer: B
