Mathematics · Pipes and Cisterns
Pipe A and B together fill a tank in X hours, while Pipe A and C together fill the same tank in Y minutes. Pipe B and C open for 8 minutes after pipe A alone has been open for 8 minutes, then pipe B alone fills the remaining part of the tank in Z minutes. Given that C alone can fill the tank in 60 minutes, which of the following values of (X, Y, Z) satisfies the conditions?
- 115, 12, 6
- 212, 15, 6✓
- 318, 12, 4
- 412, 15, 5
Correct answer
12, 15, 6
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