Out of 10 teachers of a school, on teacher retires and in place of him a new teacher 25 years old joins. As a result of it average age of the teachers reduces by 3 years. Age of the retired teacher ( in years) is :
A. 55
B. 60
C. 58
D. 56
Answer: Option A
Solution (By Examveda Team)
Total number of teachers = 10Age of new teacher = 25 years
Age of the retire teacher
= (25 + 3 × 10) years
= 55 years
This Question Belongs to Arithmetic Ability >> Average
Thnx