The ratio of Caden's age to Perry's age is 3 : 2. Last year, their average age was 14. How old will Perry be in 4 years' time?
| |
Caden |
Perry |
Total |
| Before |
3 u - 1 |
2 u - 1 |
28 |
| Change |
+ 1 |
+ 1 |
|
| After |
3 u |
2 u |
30 |
Total age of Caden and Perry this year
= 3 u + 2 u
= 5 u
Total age of Caden and Perry this year
= 2 x 14 + 1 + 1
= 28 + 2
= 30
5 u = 30
1 u = 30 ÷ 5 = 6
Perry's age in 4 years' time
= 2 u + 4
= 2 x 6 + 4
= 12 + 4
= 16
Answer(s): 16
