a 20m deep well with diameter 14cm is dug Up and the earth taken out from digging is eventually spread out to a width of 3 m to form an embankment find the height of the embankment
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volume of deep = 1/3×22/7×7×7×20
=3080/3m^3
3080/3 = h×3
h=3080/9
=3080/3m^3
3080/3 = h×3
h=3080/9
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