A) 18%
B) 20%
C) 16%
D) 19%
Correct Answer: B
Solution :
First discount = x%, then \[150\times \frac{100-x}{100}\times \frac{100-12.5}{100}=105\] \[\Rightarrow \] \[\,(100-x)(87.5)=\frac{105\times 100\times 100}{150}\] \[\Rightarrow \] \[100-x=\frac{7\times 10\times 100}{87.5}\] \[\therefore \] \[x=100-80=20%\]You need to login to perform this action.
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