a cylindrical well is 21 m deep . its inner diameter is 14m find the cost of rehovating the inner curved surface area and the base at the rate of 25rs per m square
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curved surface area is 924sq.m.
cost =924into25
=23100
cost for revoting is rs. 23100
cost =924into25
=23100
cost for revoting is rs. 23100
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