A) 60%
B) No discount
C) 33.5%
D) 28.5%
Correct Answer: D
Solution :
[d] Let cost price = Rs. 100 and marked price \[=100+40=\text{Rs}.\,\,140\] Let required discount be x%. According to the question, \[140\times \left( \frac{100-x}{100} \right)=100\] \[\Rightarrow \] \[100-x=\frac{100\times 100}{140}\] \[\therefore \] \[x=100-\frac{100\times 100}{140}=\frac{40\times 100}{140}\] = 28.5% (approx.) |
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