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?Solution
Average of Company B = (14 × 3 - 1 × 20)/2  => (42 - 20)/2 = 11 years
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INSTIGATION
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