Cross-Sectional Area of a Well The rate of discharge of a well, V

Question:

Cross-Sectional Area of a Well  The rate of discharge of a well, V, varies jointly as the hydraulic gradient, i, and the cross-sectional area of the well wall, A. Suppose that a well with a cross-sectional area of 10 ft2 discharges 3 gal of water per minute in an area where the hydraulic gradient is 0.3. If we dig another well nearby where the hydraulic gradient is 0.4, and we want a discharge of 5 gal/min, then what should be the cross-sectional area for the well?

Answer:

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