The average age of three boys is 40 years and their ages are in proportion 2:6:8. What is the age in years of the youngest boy?
Choose the correct choice from the following answers
A) 8  B) 9  C) 7  D) 6  E) 5
2x + 6x + 8x = 40   x =2.5   2x = 5   Answer:5
<result>E</result>
The average age of three boys is 40 years and their ages are in proportion 2:6:8. What is the age in years of the youngest boy?