Each employee of a certain company is in either department X or department Y, and there are more than twice as many employees in Department X as in Department Y. the average (arithmetic mean) salary is $25,000 for the employees in Department X and $ 35,00....
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Average of Dept X= $25,000
Average of Dept Y= $35,000
weight: X= 2
Y= 1
using Weighted average,
Average salary for both Dept = [2(25000)+1(35000)]/2+1
Average salary for both Dept = [50000+35000]/3
Average salary for both Dept = 85000/3
Average salary for both Dept = $28,333
From the option, the possible avarage salary of all employees is (A) $26,000 and (B) $28000. This is because the highest possible average for both Department is $28,333
Answer: $26,000 (A) and $28,000 (B)