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    Question

    The age of A is 20% less than that of B. The age of B is

    18 years more than the average age of his two friends whose total age is 34 years. Find the difference of age of A and B?
    A 9 years Correct Answer Incorrect Answer
    B 10 years Correct Answer Incorrect Answer
    C 12 years Correct Answer Incorrect Answer
    D 7 years Correct Answer Incorrect Answer

    Solution

    B is 18 years more than the average age of his two friends whose total age is 34 years. Present age of B = 18 + (34/2) = 35 years Present age of A = (80/100) × 35 = 28 years Required difference = 35 – 28 = 7 years

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