Jean is 3 years old. Her aunt is 35 years old. How old will Jean be when her aunt is five times her age?
| |
Jean |
Her aunt |
Difference |
| Before |
3 |
35 |
32 |
| Change |
+ ? |
+ ? |
|
| After |
1 u |
5 u |
4 u |
The difference in the age between Jean and her aunt remains unchanged.
Difference in their age at first
= 35 - 3
= 32
Difference in their age in the end
= 5 u - 1 u
= 4 u
4 u = 32
1 u = 32 ÷ 4 = 8
Jean's age when her aunt is five times her age
= 1 u
= 8
Answer(s): 8
