How many silver coins, 1.75cm in diameter and of tckness 2mm must be melted to form a cuboid of dimensions11cm x 10cm x 7cm?
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volume of 1 coin=πr^2h
=22/7×1.75×1.75×0.2
=22×1.75×0.25×0.2
number of coins =volume of cuboid÷volume of 1 coin
11×10×7×100×100×10÷22×175×25×2
=400
400 coins will be the answer.
=22/7×1.75×1.75×0.2
=22×1.75×0.25×0.2
number of coins =volume of cuboid÷volume of 1 coin
11×10×7×100×100×10÷22×175×25×2
=400
400 coins will be the answer.
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