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1. |
Two pipes, A and B, can fill a tank in X minutes and 6 minutes, respectively. If both the pipes are used together, then they take 1.5 minute to fill the tank. Find the value of X. |
A. | 1 min |
B. | 4 min |
C. | 5 min |
D. | 2 min |
Answer» E. | |