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    Question

    Average age of company A is 22 years and average age of

    both companies A and B is 14 years. If the ratio of number of employees in company A and B is 3:4, then what is the average age of company B?
    A 10 years Correct Answer Incorrect Answer
    B 9 years Correct Answer Incorrect Answer
    C 8 years Correct Answer Incorrect Answer
    D 7 years Correct Answer Incorrect Answer

    Solution

    Average of Company B = (14 × 7 - 3 × 22)/4 => (98 - 66)/4 = 8 years

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