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                                    A dealer buys an article listed at Rs 100 and gets successive discounts of 10% and 20%. He spends 10% of the cost price on transport. At what price should he sell the article to earn a profit of 15% ? (a) Rs 90(b) Rs 90.02 (c) Rs 91.08 (d) Rs 91.28 | 
                            
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Answer»  (c) Rs 91.08 Cost price of the article after discount = 90% of 80% of Rs 100 = \(\frac{90}{100}\) x \(\frac{80}{100}\) x Rs 100 = Rs 72 Amount spent on transport = 10% of Rs 72 \(\therefore\) Net C.P. = Rs 72 + Rs 7.20 = Rs 79.20 Profit = 15% \(\therefore\) S.P. = Rs \(\big(\frac{79.2\times115}{100}\big)\)= Rs 91.08  | 
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