When Mr Wesley is 39 years old, his cousin is 3 years old. In how many years will he be 5 times as old as his cousin?
| |
Mr Wesley |
His cousin |
Difference |
| Before |
39 |
3 |
36 |
| Change |
+ ? |
+ ? |
|
| After |
5 u |
1 u |
4 u |
The difference in the age between Mr Wesley and his cousin at first and in the end remains the same.
Difference in the age between Mr Wesley and his cousin
= 5 u - 1 u
= 4 u
4 u = 39 - 3
4 u = 36
1 u = 36 ÷ 4 = 9
Number of years' time so Mr Wesley will be 5 times as old as his cousin
= 9 - 3
= 6
Answer(s): 6
