A) 89
B) 91
C) 97
D) 94
Correct Answer: C
Solution :
Concentration of Ag in zinc \[=\frac{x}{10}\] \[\therefore \] Concentration of Ag in Pb \[=\frac{1-x}{100}\] \[\frac{\frac{x}{10}}{\frac{1-x}{100}}=300\] On solving, we get \[x=97%\]You need to login to perform this action.
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