A well of diameter 4m is dug 7m deep. The earth taken out is spread evenly all around the well to form circular ring of 40 cm high embankment. Find the width of embankment.
A well of diameter 4m is dug 7m deep. The earth taken out is spread evenly all around the well to form circular ring of 40 cm high embankment. Find the width of embankment.
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