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1. |
A tank with capacity T liters is empty. If water flows into the tank from pipe X at the rate of x liters per minute and water is pumped out by Y at the rate of y liters per minute and x > y, then how many minutes will the tank be filled? |
A. | x - y) 60 T minutes |
B. | T - x) minutes |
C. | $\frac{{\text{T}}}{{{\text{x}} - {\text{y}}}}$$minutes |
D. | $\frac{{\text{T}}}{{{\text{y}} - {\text{x}}}}$$minutes |
Answer» D. $\frac{{\text{T}}}{{{\text{y}} - {\text{x}}}}$$minutes | |