Question

The length and the breadth of a rectangular plot are 12.5 metres and 8 metres respectively. A pit 2 metres long, 2 metres wide and 0.6 metre deep is dug inside the plot and the soil is spread uniformly on the remaining ground. Find the rise in the level of the plot.
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Answer 1

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Answer 2

The rise in the level of the plot is​ 25 mm

Step-by-step explanation:

Given data

• Dimension of pit

        Length = 2 m

        Breadth = 2 m

        Depth = 0.6 m

        Volume of pit = Length× Breadth× Depth

        Volume of pit = 2× 2× 0.6 = 2.4 m³

• Now soil is spread over filed

• Area of plot over which soil spread = 12.5× 8 -2× 2 =  96 m²

• Let height of rise of plot = H    (m)

        Volume of plot rise = Area of plot over which soil spread× Height

        Volume of plot rise = 96× H          (m³)

• Volume of plot rise = Volume of pit

        96× H = 2.4

        On solving

         H = 0.025 m = 25 mm= This is rise in the level of the plot.