12. Three cubes of silver with edges 3 cm, 4 cm and 5 cm are melted and recast into a
single cube. Find the cost of coating the surface of the new cube with gold at the rate
of 3.50 per square centimetre.
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Answer:
correct the question please in the place of gold silver hona chahie
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it is cost of big cube which is made up of silver
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