The average age of 12 people is 22 years. If the age of one person is subtracted, the average decreases by one year. What is the age of the person whose age is subtracted?
1
31
2
29
3
33
4
43
5
None of these
The average age of 12 people is 22 years. If the age of one person is subtracted, the average decreases by one year. What is the age of the person whose age is subtracted?