A book is listed at Rs. 150, with a discount of 20 per cent. What additional discount must be offered to bring the net price to Rs. 108 ?
A book is listed at Rs. 150, with a discount of 20 per cent. What additional discount must be offered to bring the net price to Rs. 108 ?
A$11\frac{1}{9}$%
B0.15
C0.08
DNone of these
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Correct answer is: None of these
Explanation:
Selling price after given 20% discount
\(\eqalign{ & = 150 \times \frac{{\left( {100 - 20} \right)}}{{100}} \cr & = 120 \cr & {\text{So,}} \cr & \Rightarrow 120 \times \frac{x}{{100}} = 108 \cr & \Rightarrow x = 90 \cr}\)
∴ Required additional discount = (100 - 90)% = 10%
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