The dimensions of a an oil tin are 26 cm*26 cm*45cm. Find the area of the tin sheet required for making 20 such tins. If 1 sq m of the tin sheets costs rs 10, find the cost of tin used for these 20 tins.
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Area of 20 tins=2(lb+bh+hl)×20
=2(3016)×20 = 120640cm²
=0.120640m²
Cost of 20 tins=20×0.120640
=Rs 2.4128
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