Mathematics, 27.02.2020 01:57 james828
The mean age of 9 women in an office is 27 years old. The mean age of 7 men in an office is 25 years old. What is the mean age (nearest year) of all the people in the office?
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The mean age of 9 women in an office is 27 years old. The mean age of 7 men in an office is 25 years...
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