Owen is 8 years old. His father is 22 years older than him. In how many years will Owen's father be 3 times as old as Owen?
| |
His father |
Owen |
Difference |
| Before |
30 |
8 |
22 |
| Change |
+ ? |
+ ? |
|
| After |
3 u |
1 u |
2 u |
The difference in the age between Owen and his father at first and in the end remains the same.
Difference in the age between Owen and his father
= 3 u - 1 u
= 2 u
2 u = 22
1 u = 22 ÷ 2 = 11
The increase in age of Owen and his father remains the same.
Number of years' time so Owen's father will be 3 times as old as Owen
= 11 - 8
= 3
Answer(s): 3
