When Mr Asher is 49 years old, his son is 4 years old. In how many years will he be 6 times as old as his son?
| |
Mr Asher |
His son |
Difference |
| Before |
49 |
4 |
45 |
| Change |
+ ? |
+ ? |
|
| After |
6 u |
1 u |
5 u |
The difference in the age between Mr Asher and his son at first and in the end remains the same.
Difference in the age between Mr Asher and his son
= 6 u - 1 u
= 5 u
5 u = 49 - 4
5 u = 45
1 u = 45 ÷ 5 = 9
Number of years' time so Mr Asher will be 6 times as old as his son
= 9 - 4
= 5
Answer(s): 5
