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