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