a closed iron tank 12 m long,9m wide and 4m deep is to be made. Determine the cost of iron sheet used at the rate of Rs.5 per meter sheet , sheet being 2 m wide.
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Step-by-step explanation:
6 surface area of the iron tank is
2(12×9+9×4+4×12) sqm
2(108+36+48)dan
2.192sqm=384sqm
length of the sheet is 384/2m
=192m
cost of the iron sheet is 192×5Rs
=960Rs
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