Question
Ratio of the cost price of article ‘A’ to ‘B’ is
3:7, respectively. Article ‘A’ is marked up by 45% above its cost price and then sold at a discount of 20%. If the profit earned on article ‘A’ is Rs. 240, then find the cost price of article ‘B’.Solution
Let the cost price of article ‘A’ be Rs. 3x Marked price of article ‘A’ = 1.45 × 3x = Rs. 4.35x Selling price of article ‘A’ = 4.35x × 0.8 = Rs. 3.48x Or, 3x + 240 = 3.48x Or, 0.48x = 240 Or, x = 500 Cost price of article ‘B’ = 7x = 7 × 500 = Rs. 3500
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