A) Rs. 130
B) Rs. 140
C) Rs. 150
D) Rs. 160
Correct Answer: C
Solution :
[c] Let the cost price of book = Rs. x. \[\therefore \] Selling price of book \[=x\times \frac{110}{100}=\frac{11x}{10}=\text{Rs}.\,\,1.1x\] Now, cost price of book \[=x\times \frac{96}{100}=\text{Rs}.\,\,0.96x\] Now, selling price of book \[=0.96x\times \frac{\left( 100+\frac{75}{4} \right)}{100}\] \[=0.96x\times 1.1875=\text{Rs}.\,\,1.14x\] According to the question, \[1.14x-1.1x=6\] \[\Rightarrow \] 0.04x = 6 \[\Rightarrow \] \[x=\frac{6}{0.04}=\frac{600}{4}=150\] |
You need to login to perform this action.
You will be redirected in
3 sec