Question

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?

Answer 1

32 years

Explanation:

Here, we simply calculate the age of all first

For all men, we have 7(33) = 231

For all women = 3(30) = 90

So we simply have;

(90 + 231)/10 = 32.1

Approximately 32 years