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    Question

    The ratio of the ages of A and B is 3:5. If the difference between their ages is 10 years, what is the sum of their ages?

    A 60 years Correct Answer Incorrect Answer
    B 40 years Correct Answer Incorrect Answer
    C 50 years Correct Answer Incorrect Answer
    D 70 years Correct Answer Incorrect Answer

    Solution

    Let the ages of A and B be 3x and 5x respectively.  The difference is – 5x−3x=10  2x = 10 X=5 So, their ages are 15 and 25. And Sum =15+25=40years.

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