Q112
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
AnswerB.
60
C.
58
D.
56
Answer: Option A
Solution
Answer: Option A
Solution:
Total number of teachers = 10Age of new teacher = 25 years
Age of the retire teacher
= (25 + 3 × 10) years
= 55 years