Discussion Forum : True Discount
Question -
A shopkeeper marks his goods at 30% above the cost price but allows a discount of 10% at the time of sale. His gain is
Answer: Option B
Answer: (b)Let the CP of the article be 100.According to the question,The marked price = Rs.130Discount = 10%SP = 90% of 130= ${130 × 90}/100$ = Rs.117Gain = 117 - 100 = Rs.17Gain per cent = 17%since the CP = Rs.100Using Rule 8,Here, r = 30%, $r_1$ = 10%gain % = ${r × (100 - r_1)}/100 - r_1$= ${30 × (100 - 10)}/100 - 10$= ${30 × 90}/100 - 10$ = 17%
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Answer: (b)Let the CP of the article be 100.According to the question,The marked price = Rs.130Discount = 10%SP = 90% of 130= ${130 × 90}/100$ = Rs.117Gain = 117 - 100 = Rs.17Gain per cent = 17%since the CP = Rs.100Using Rule 8,Here, r = 30%, $r_1$ = 10%gain % = ${r × (100 - r_1)}/100 - r_1$= ${30 × (100 - 10)}/100 - 10$= ${30 × 90}/100 - 10$ = 17%
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