Mathematics, 25.01.2021 14:40 jeftegerman988

The mean age of 3 women in an office is 30 years old. The mean age of 7 men in an office is 33 years old.
What is the mean age (nearest year) of all the people in the office?

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The mean age of 3 women in an office is 30 years old. The mean age of 7 men in an office is 33 year...