Question
Average age of company A is 23 years and average age of
both companies A and B is 15 years. If the ratio of number of employees in company A and B is 3:8, then what is the average age of company B? TYPE 1Solution
Average of Company B = (15 × 11 - 3 × 23)/8  => (165 - 69)/8 = 12 years
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