an iron tank 20 metre long, 10 metre wide and 8 metre deep is to be made from iron sheet 4 metre wide. if the tank open from the top, find the cost of the iron sheet at rate of 75 metre square.
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Step-by-step explanation:
length = 480 / 4 = 120 m . Given that cost of iron, the sheet used at the rate of Rs 5 per metre.
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