Dylan is 2 years old. His auntie is 20 years older than him. In how many years will Dylan's auntie be 6 times as old as Dylan?
| |
His auntie |
Dylan |
Difference |
| Before |
22 |
2 |
20 |
| Change |
+ ? |
+ ? |
|
| After |
6 u |
1 u |
5 u |
The difference in the age between Dylan and his auntie at first and in the end remains the same.
Difference in the age between Dylan and his auntie
= 6 u - 1 u
= 5 u
5 u = 20
1 u = 20 ÷ 5 = 4
The increase in age of Dylan and his auntie remains the same.
Number of years' time so Dylan's auntie will be 6 times as old as Dylan
= 4 - 2
= 2
Answer(s): 2
