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


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