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    Question

    The cost price of article A is 30% more than that of

    article B. The selling price of article B is 90% of the selling price of article A. If the profit earned by selling article A is equal to the profit earned by selling article B. Then find the percentage profit earned on selling article B.
    A 120% Correct Answer Incorrect Answer
    B 170% Correct Answer Incorrect Answer
    C 100% Correct Answer Incorrect Answer
    D 145% Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let CP of B = 100 → CP of A = 130 Let profit = P Then: SP of A = 130 + P SP of B = 100 + P Given: 100 + P = 0.9 × (130 + P) → 100 + P = 117 + 0.9P → 0.1P = 17 → P = 170 % profit on B = (170 / 100) × 100 = 170%

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