A well with inner radius 4 m is dug 14 m deep. Earth taken out of it has been spread evenly all around a width of 3 m it to form an embankment. Find the height of the embankment.
[CBSE 2016]
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The height of the The height of the embankment =AreaoftheembankmentVolumeoftheearthdugout=722×(72−42)722×42×15=3316×14=6.78m
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