The average age of a class of 15 students is 30 years. If the age of the teacher be included, then the average increases by 2 years. Find the age of the teacher in years.
1
59
2
55
3
62
4
60
The average age of a class of 15 students is 30 years. If the age of the teacher be included, then the average increases by 2 years. Find the age of the teacher in years.
59
55
62
60