When Mr Fabian is 33 years old, his child is 5 years old. In how many years will he be 5 times as old as his child?
| |
Mr Fabian |
His child |
Difference |
| Before |
33 |
5 |
28 |
| Change |
+ ? |
+ ? |
|
| After |
5 u |
1 u |
4 u |
The difference in the age between Mr Fabian and his child at first and in the end remains the same.
Difference in the age between Mr Fabian and his child
= 5 u - 1 u
= 4 u
4 u = 33 - 5
4 u = 28
1 u = 28 ÷ 4 = 7
Number of years' time so Mr Fabian will be 5 times as old as his child
= 7 - 5
= 2
Answer(s): 2
