### 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

## Show Answer

###
Answer-A

Solution-

__Solution(By Apex Team)__

Total number of teachers = 10
Age of new teacher = 25 years
Age of the retire teacher
= (25 + 3 × 10) years
= 55 years