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    Question

    Average age of company A is 20 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 1:2, then what is the average age of company B?
    A 10 years Correct Answer Incorrect Answer
    B 11 years Correct Answer Incorrect Answer
    C 8 years Correct Answer Incorrect Answer
    D 12 years Correct Answer Incorrect Answer
    E 14 years Correct Answer Incorrect Answer

    Solution

    Average of Company B = (14 ├Ч 3 - 1 ├Ч 20)/2 ┬а => (42 - 20)/2 = 11 years

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