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    Question

    The ratio of cost price of articles 'G' and 'H' is 9:11,

    respectively. If articles 'G' and 'H' are sold at a profit of 50% and 30%, respectively, then the difference between their selling prices is Rs. 110. Find the average of cost price of articles 'G' and 'H' together.
    A Rs.1075 Correct Answer Incorrect Answer
    B Rs.1175 Correct Answer Incorrect Answer
    C Rs.1300 Correct Answer Incorrect Answer
    D Rs.1375 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let the cost price of articles 'G' and 'H' be Rs. '9x' and Rs. '11x', respectively. Selling price of article 'G' = 9x × 1.5 = Rs. '13.5x' Selling price of article 'H' = 11x × 1.3 = Rs. '14.3x' According to the question, 14.3x - 13.5x = 110 0.8x = 110 x = 110 ÷ 0.8 x = 137.5 So, average of cost price of articles 'G' and 'H' = (9x + 11x) ÷ 2 = 10x = 10 × 137.5 = Rs.1375

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