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    Question

    The sum of three numbers is 72. If the ratio of

    smallest number to largest number is 1:3, and that of smallest number to second smallest number is 1:2, then find the largest number.
    A 24 Correct Answer Incorrect Answer
    B 30 Correct Answer Incorrect Answer
    C 36 Correct Answer Incorrect Answer
    D 42 Correct Answer Incorrect Answer

    Solution

    Let the smallest number be 'x' So, second smallest number = 2x And largest number = x × 3 = 3x ATQ: 2x + 3x + x = 72 Or,
    6x = 72 So,
    x = 12 So, largest number = 12 × 3 = 36

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