A tank 30 m long , 24 m wide and 4 : 5 m deep Is to be made . It is open from the top . Find the cost of iron - sheet required , at the rate of * 65 per m2 , to make the tank .
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A tank 30 m long , 24 m wide and 4 : 5 m deep Is to be made . It is open from the top . Find the cost of iron - sheet required , at the rate of * 65 per m2 , to make the tank .
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= 2(108+135)+720
= 1206 m²
cost= 1206×65 = Rs78390