New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    TYPE F

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

    25 years more than the average age of his two friends whose total age is 30 years. Find the difference of age of A and B?
    A 8 years Correct Answer Incorrect Answer
    B 11 years Correct Answer Incorrect Answer
    C 14 years Correct Answer Incorrect Answer
    D 6 years Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    B is 25 years more than the average age of his two friends whose total age is 30 years. Present age of B = 25 + (30/2) = 40 years Present age of A = (4/5)×40 = 32 years Required difference = 40 – 32 = 8 years

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