The average age of a group of 36 students is 23 years. Four students with average age 22 years leave the group. What is the average age in years (correct up to one decimal place) of the new group?

The average age of a group of 36 students is 23 years. Four students w

1.	The average age of a group of 36 students is 23 years. Four students with average age 22 years leave the group. What is the average age in years (correct up to one decimal place) of the new group?
A.	24.4
B.	23.8
C.	23.1
D.	24.5
Answer» D. 24.5