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Pipe X can fill a tank in 5 hours. If pipe Y is also opened, the tank is filled in 3 hours. Find the time taken by pipe Y alone to fill the tank. | |
A. | 4.5 hours [Wrong Answer] |
B. | 6 hours [Wrong Answer] |
C. | 7.5 hours [Correct Answer] |
D. | 9 hours [Wrong Answer] |