Albert is 3 years old. His auntie is 34 years older than him. In how many years will Albert's auntie be 3 times as old as Albert?
| |
His auntie |
Albert |
Difference |
| Before |
37 |
3 |
34 |
| Change |
+ ? |
+ ? |
|
| After |
3 u |
1 u |
2 u |
The difference in the age between Albert and his auntie at first and in the end remains the same.
Difference in the age between Albert and his auntie
= 3 u - 1 u
= 2 u
2 u = 34
1 u = 34 ÷ 2 = 17
The increase in age of Albert and his auntie remains the same.
Number of years' time so Albert's auntie will be 3 times as old as Albert
= 17 - 3
= 14
Answer(s): 14
