A) Rs. 124
B) Rs. 140
C) Rs. 150
D) Rs. 170
Correct Answer: C
Solution :
[c] Let the marked price = Rs. x After a discount of 20% price \[=x-\frac{20}{100}x=Rs.\frac{4x}{5}\] After a 10% discount on new price \[=\frac{4x}{5}-\frac{10}{100}\times \frac{4x}{5}\] \[=Rs.\frac{4x}{5}-\frac{2x}{25}\] \[=Rs.\frac{18x}{25}\] As given \[\frac{18x}{25}=108\] \[\Rightarrow \] \[x=\frac{108\times 25}{18}=Rs.150\]
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