A) \[20:21\]
B) \[7:12\]
C) \[19:41\]
D) \[83:85\]
Correct Answer: D
Solution :
Let 1 kg of each one of A and B be taken to form 2 kg of C. Silver in 1kg of \[A=\frac{4}{7}\] Gold in 1 kg of \[A=\frac{3}{7}\] Silver in 1 kg of \[B=\frac{5}{12}\] Gold in 1 kg of \[B=\frac{7}{12}\] Silver in 2 kg of \[C=\left( \frac{4}{7}+\frac{5}{12} \right)=\frac{83}{84}\] Gold in 2kg of \[C=\left( \frac{3}{7}+\frac{7}{12} \right)=\frac{85}{84}\] Ratio of silver and gold in \[C=\frac{83}{84}/\frac{85}{84}=\underline{\mathbf{83:85}}\]You need to login to perform this action.
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