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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) 8 per cent

B) 10 per cent

C) \( \Large 12\frac{1}{2} \) per cent

D) 15 per cent

Correct Answer:
B) 10 per cent

Description for Correct answer:
After a discount of 20%

cost of the book = 80% of Rs.150

= \( \Large \frac{150 \times 80}{100} \) = Rs.120

Let the additional discount be x%

Second discount

= 120 - 108 = Rs.12

Therefore, x% of 120 = 12

= \( \Large \frac{120 \times x}{100} \) = 12

=> x = \( \Large \frac{12 \times 100}{120} \) = 10%

Part of solved Discount questions and answers : >> Aptitude >> Discount




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