Question

A well of radius 7 m is dug to depth of 12 m. Earth taken out of it has been evenly spread all around to form a circular embankment of width 7 m. Find the height of the embankment​

Answer 1

vol. ofmud=πr 2h=22x7x7x12/7.

1848m3

I848= πx3.5x3.5.xh

1848=22x3.5x3.5xh/7

h=1848x7/22x3.5x3.5=48m

=

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