4. A well of diameter 3 m is dug 14 m deep. The earth taken out of it has been spread evenly all around it in the shape of a circular ring of width 4 m to form an embankment. Find the height of the embankment.
According to the question, the volume is conserved here :
The volume of soil dug out = Volume of the embankment made.
Let the height of the embankment is h.
Hence the height of the embankment made is 1.125 m.
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