The ratio of Perry's age to Wesley's age is 2 : 1. Last year, their average age was 23. How old will Wesley be in 10 years' time?
|
Perry |
Wesley |
Total |
Before |
2 u - 1 |
1 u - 1 |
46 |
Change |
+ 1 |
+ 1 |
|
After |
2 u |
1 u |
48 |
Total age of Perry and Wesley this year
= 2 u + 1 u
= 3 u
Total age of Perry and Wesley this year
= 2 x 23 + 1 + 1
= 46 + 2
= 48
3 u = 48
1 u = 48 ÷ 3 = 16
Wesley's age in 10 years' time
= 1 u + 10
= 1 x 16 + 10
= 16 + 10
= 26
Answer(s): 26