CIMA BA1 · Chapter 9 · Question 10 of 11
Branch A has 20 employees with a mean weekly wage of $600. Branch B has 30 employees with a mean weekly wage of $700. What is the mean weekly wage for all employees of both branches?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: B) $660
Explanation
The combined mean must be weighted by the number of employees. Total wages = 20 x 600 + 30 x 700 = 12,000 + 21,000 = 33,000. Combined mean = 33,000 / 50 = $660.
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