Lee is 6 years old now. His sister is 33 years older than him. How old will Lee be when his age is
47 of his sister's age?
| |
Lee |
His sister |
Difference |
| Before |
|
|
33 |
| Change |
+ ? |
+ ? |
|
| After |
4 u |
7 u |
3 u |
The difference in the age between Lee and his sister at first and in the end remains unchanged.
Number of years that his sister is older than Lee
= 7 u - 4 u
= 3 u
3 u = 33
1 u = 33 ÷ 3 = 11
Lee's age when his age is
47 of his sister's age
= 4 u
= 4 x 11
= 44
Answer(s): 44
