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    Question

    The ratio of two numbers ‘A’ and ‘B’ is 11:13.

    If the product of these two numbers is 20592, then find the difference between number ‘B’ and number ‘A’.
    A 24 Correct Answer Incorrect Answer
    B 36 Correct Answer Incorrect Answer
    C 12 Correct Answer Incorrect Answer
    D 48 Correct Answer Incorrect Answer

    Solution

    Let the number ‘A’ and number ‘B’ be ‘11x’ and ‘13x’, respectively. According to the question, 11x × 13x = 20592 Or, 143x² = 20592 Or, x² = 144 Or, x = 12 (Since, ‘x’ cannot be negative in this case) Required difference = 13x – 11x = 2x = 2 × 12 = 24

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