The ratio of Ivan's age to Owen's age is 5 : 1. Last year, their average age was 14. How old will Owen be in 7 years' time?
| |
Ivan |
Owen |
Total |
| Before |
5 u - 1 |
1 u - 1 |
28 |
| Change |
+ 1 |
+ 1 |
|
| After |
5 u |
1 u |
30 |
Total age of Ivan and Owen this year
= 5 u + 1 u
= 6 u
Total age of Ivan and Owen this year
= 2 x 14 + 1 + 1
= 28 + 2
= 30
6 u = 30
1 u = 30 ÷ 6 = 5
Owen's age in 7 years' time
= 1 u + 7
= 1 x 5 + 7
= 5 + 7
= 12
Answer(s): 12
