Gold is 19 times as heavy as water and copper is 9 times as heavy as water. The ratio in which these two metals be mixed so that the mixture is 15 times as heavy as water, is

Gold is 19 times as heavy as water and copper is 9 times as heavy as w

1.	Gold is 19 times as heavy as water and copper is 9 times as heavy as water. The ratio in which these two metals be mixed so that the mixture is 15 times as heavy as water, is
A.	3 : 1
B.	3 : 2
C.	2 : 3
D.	4 : 3
Answer» C. 2 : 3

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Gold is 19 times as heavy as water and copper is 9 times as heavy as water. The ratio in which these two metals be mixed so that the mixture is 15 times as heavy as water, is

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