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Start learning 50% faster. Sign in nowLet the cost price of articles ‘A’ and ‘B’ be Rs. 12y and Rs. 11y respectively Sum of cost price of articles ‘A’ and ‘B’ = 2300 × 2 = 4600 => 12y + 11y = 4600 => 23y = 4600 => y = 200 So, cost price of article ‘A’ = 12y = Rs. 2400 Cost price of article ‘B’ = 11y = Rs. 2200 Selling price of article ‘A’ = 2400 × (130/100) = Rs. 3120 Selling price of article ‘B’ = 2200 + 500 = Rs. 2700 So, average selling price of given two articles = (3120 + 2700) ÷ 2 = Rs. 2910
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