Cost of the canvas for covering the box at the rate of 4-5 per cm if the dimension of a cubical box is 15 cm .
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Answer:
Area =2(lb+lh+lh)
=2(250×125+250×75+125×75)
=2(250×200+125×75)
=2×50000+250×75
=100000+18750
=118750cm
2
=11.875m
2
∴ Cost = Area × Rate
=11.875×4Rs
=47.5Rs
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