.
The total hourly wage over 4000 employees at the first division is 4000*6.05 dollars.
The total hourly wage over 8000 employees at the second division is 8000*7.39 dollars.
The total hourly wage over all 4000+8000 = 12000 employees at the both division is 4000*6.05 + 8000*7.39 dollars.
The average hourly wage over all 12000 employees at both divisions is
= 6.94 dollars. ANSWER
Solved.
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