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Mathematics, 12.05.2021 19:40 nahimo

The mean age of 11 women in an office is 31 years old. The mean age of 6 men in an office is 29 years old.
What is the mean age (nearest year) of all the people in the office?

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The mean age of 11 women in an office is 31 years old. The mean age of 6 men in an office is 29 yea...

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