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