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    Question

    The ratio of two natural numbers 'x' and 'y' is 9:13,

    respectively. When 30 is added to 'x' and 15 is subtracted from 'y', the ratio of 'x' to 'y' becomes 3:2. Find the square of the difference between the two numbers.
    A 434 Correct Answer Incorrect Answer
    B 400 Correct Answer Incorrect Answer
    C 312 Correct Answer Incorrect Answer
    D 325 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the values of 'x' and 'y' be '9z' and '13z', respectively. ATQ, Required square of difference between two numbers:

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