Question

The average age of 100 teachers in a college in 2000 was 50 years. In 2002, 20 teachers superannuated from their jobs, whose average age was 60 years. In 2005, 40 new teachers joined the college whose average age was 38 years. What was the average age of all the teachers in 2008?

• A. 54 years
• B. 49 years
• C. 51 years
• D. 50 years

Hint:

In average age problems, always convert averages into total ages first. Then adjust totals whenever people leave, join, or grow older.

Answer 1

The Correct Option is C