A) Rs. 22
B) Rs. 24
C) Rs. 27
D) Rs. 30
Correct Answer: C
Solution :
Let the former rate be Rs. x per dozen New rate = Rs.\[\left( x\times \frac{75}{100} \right)\,\,\] = Rs.\[\frac{3x}{4}\]per dozen \[\Rightarrow \] \[\frac{162}{{}^{3x}/{}_{4}}-\frac{162}{x}=2\] \[\Rightarrow \] \[\frac{216}{x}-\frac{162}{x}=2\] \[\Rightarrow \] \[2x=(216-162)=54\] \[\Rightarrow \] x = 27 Original rate = Rs. 27 per dozen.You need to login to perform this action.
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