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A dishonest dealer marks up the price of his goods by 20% and gives a discount of 10% to the customer. He also uses a 900 gram weight instead of a 1 kilogram weight. Find his percentage profit due to these maneuvers?

A. 20% B. 11% C. 14% D. 18% Answer: Option A
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Solution(By Apex Team)

Let CP = Rs. 1 per gram Then SP of 1000gram is 1000 + 20% of 1000 = Rs. 1200 Now Dealer gives 10% discount = 1200 – 10% of 1200 = Rs. 1080 Then, Dealer is dishonest and sells 900 g is 1080 And, CP of 900 grams is 900 Profit = 1080 – 900 = 180 ∴ % profit =$\frac{180 \times 100}{900}=20 \%$

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