gold is 15 times as heavy as water, and copper is 9 times as heavy as water. in what ratio should cu and au should be mixed so that the alloy is 15 times heavy as water.

Dear shivam

Your question is incorrect as alloy will be less than 15 times heavy. please see the question again.

All the best.                                                           

AKASH GOYAL

AskiitiansExpert-IIT Delhi

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