Two pipes A and B can fill a tank in 20 hours and 30 hours respectively, while pipe C can empty the tank in 60 hours. Initially all three taps are opened. Pipe C is closed 10 hours before the tank is filled. What is the total time (in hours) taken to fill the tank?

Subject: Mathematics | Topic: Arithmetic | Difficulty: MEDIUM

Options

1. (A) 10(1/4)
2. (B) 12(1/4)
3. (C) 12(1/2)
4. (D) 10(1/2)

Verified Answer

Option (C): 12(1/2)

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