A) Rs. 16
B) Rs. 18
C) Rs. 20
D) Rs. 25
Correct Answer: A
Solution :
Let the original price of sugar \[~=Rs.\,x/kg\] \[\therefore \] New price of sugar \[=x\times \frac{75}{100}\] \[=Rs.\frac{3x}{4}\] According to the question, \[\frac{360}{\frac{3x}{4}}-\frac{360}{x}=\frac{15}{2}\] \[\Rightarrow \] \[\frac{480}{x}-\frac{360}{x}=\frac{15}{2}\] \[\Rightarrow \] \[\frac{120}{x}=\frac{15}{2}\] \[\Rightarrow \] \[x=\frac{120\times 2}{15}\] \[=Rs.\,\,\text{kg}\]You need to login to perform this action.
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