Tim is 4 years old. His father is 32 years older than him. In how many years will Tim's father be 5 times as old as Tim?
| |
His father |
Tim |
Difference |
| Before |
36 |
4 |
32 |
| Change |
+ ? |
+ ? |
|
| After |
5 u |
1 u |
4 u |
The difference in the age between Tim and his father at first and in the end remains the same.
Difference in the age between Tim and his father
= 5 u - 1 u
= 4 u
4 u = 32
1 u = 32 ÷ 4 = 8
The increase in age of Tim and his father remains the same.
Number of years' time so Tim's father will be 5 times as old as Tim
= 8 - 4
= 4
Answer(s): 4
