When Mr Charlie is 46 years old, his nephew is 6 years old. In how many years will he be 6 times as old as his nephew?
| |
Mr Charlie |
His nephew |
Difference |
| Before |
46 |
6 |
40 |
| Change |
+ ? |
+ ? |
|
| After |
6 u |
1 u |
5 u |
The difference in the age between Mr Charlie and his nephew at first and in the end remains the same.
Difference in the age between Mr Charlie and his nephew
= 6 u - 1 u
= 5 u
5 u = 46 - 6
5 u = 40
1 u = 40 ÷ 5 = 8
Number of years' time so Mr Charlie will be 6 times as old as his nephew
= 8 - 6
= 2
Answer(s): 2
