The Average age of a class of 22 students is 21 years. The average increased by 1 when the teacher’s age also included. What is the age of the teacher?

The Average age of a class of 22 students is 21 years. The average inc

1.	The Average age of a class of 22 students is 21 years. The average increased by 1 when the teacher’s age also included. What is the age of the teacher?
A.	41
B.	42
C.	44
D.	45
Answer» D. 45