The average age of a group of 8 people increases by 2 years when a person aged 14 is replaced by a new person. Find the age of the new person.
Show answer & explanation
Correct answer: A
Explanation
Number of people in the group = 8
Increase in average age = 2 years
Increase in total age = 8 × 2 = 16 years
Age of the new person = x
x − 14 = 16
x = 30