Gold is 19 times as heavy as water and copper | vedclass

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(B) Using the rule of alligation:$1$. The density of gold relative to water is $19$.$2$. The density of copper relative to water is $9$.$3$. The desir

Vedclass · Accepted Answer

$3:2$

Vedclass · Answer

(B) Using the rule of alligation:$1$. The density of gold relative to water is $19$.$2$. The density of copper relative to water is $9$.$3$. The desired density of the mixture relative to water is $15$.Applying the alligation method:- Difference between copper and mixture $= |9 - 15| = 6$- Difference between gold and mixture $= |19 - 15| = 4$Therefore,the ratio of gold to copper is $6:4$.Simplifying the ratio $6:4$ gives $3:2$.Thus,the metals should be mixed in the ratio $3:2$.

Gold is $19$ times as heavy as water and copper is $9$ times as heavy as water. In what ratio should these metals be mixed so that the mixture may be $15$ times as heavy as water?

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