Warren is 8 years old. His mother is 24 years older than him. In how many years will Warren's mother be 3 times as old as Warren?
| |
His mother |
Warren |
Difference |
| Before |
32 |
8 |
24 |
| Change |
+ ? |
+ ? |
|
| After |
3 u |
1 u |
2 u |
The difference in the age between Warren and his mother at first and in the end remains the same.
Difference in the age between Warren and his mother
= 3 u - 1 u
= 2 u
2 u = 24
1 u = 24 ÷ 2 = 12
The increase in age of Warren and his mother remains the same.
Number of years' time so Warren's mother will be 3 times as old as Warren
= 12 - 8
= 4
Answer(s): 4
