A well of diameter 7 m is dug 8 m deep, and the earth taken out is spread evenly over a rectangular plot measuring 22 m by 14 m. Find the rise in the level of the plot, in cm. Take π = 22/7.

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Accepted Answer

100. Earth dug out = (22/7) × 3.5² × 8 = 38.5 × 8 = 308 m³. Plot area = 22 × 14 = 308 m². Rise = 308 ÷ 308 = 1 m = 100 cm.

A well of diameter 7 m is dug 8 m deep, and the earth taken out is spread evenly over a rectangular plot measuring 22 m by 14 m. Find the rise in the level of the plot, in cm. Take π = 22/7.

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