Gold is 19 times heavier than water and copper is 9 times as heavy as – McqOptions

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1.	Gold is 19 times heavier than water and copper is 9 times as heavy as water, in what ratio should they be mixed so that the alloy becomes 15 times as heavy as water.
A.	3:4
B.	7:12
C.	3:2
D.	1
Answer» D. 1

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