The ratio of Albert's age to Neave's age is 3 : 1. Next year, their average age will be 13. How old will Albert be in 6 years' time?
| |
Albert |
Neave |
Total |
| Before |
3 u |
1 u |
24 |
| Change |
+ 1 |
+ 1 |
|
| After |
3 u + 1 |
1 u + 1 |
26 |
Total age of Albert and Neave this year
= 3 u + 1 u
= 4 u
Total age of Albert and Neave this year
= 2 x 13 - 1 - 1
= 26 - 2
= 24
4 u = 24
1 u = 24 ÷ 4 = 6
Albert's age in 6 years' time
= 3 u + 6
= 3 x 6 + 6
= 18 + 6
= 24
Answer(s): 24
