When Mr Cole is 41 years old, his nephew is 5 years old. In how many years will he be 5 times as old as his nephew?
| |
Mr Cole |
His nephew |
Difference |
| Before |
41 |
5 |
36 |
| Change |
+ ? |
+ ? |
|
| After |
5 u |
1 u |
4 u |
The difference in the age between Mr Cole and his nephew at first and in the end remains the same.
Difference in the age between Mr Cole and his nephew
= 5 u - 1 u
= 4 u
4 u = 41 - 5
4 u = 36
1 u = 36 ÷ 4 = 9
Number of years' time so Mr Cole will be 5 times as old as his nephew
= 9 - 5
= 4
Answer(s): 4
