Julian's age is
35 his sister's age now. 25 years ago, his age was
25 that of his sister's. How old is Julian now?
|
Julian |
Julian's sister |
Difference |
Before |
2x2 = 4 u |
5x2 = 10 u |
3x2 = 6 u |
Change |
+ 25 |
+ 25 |
|
After |
3x3 = 9 u |
5x3 = 15 u |
2x3 = 6 u |
The difference in the age between Julian and Julian's sister remains unchanged. Make the difference in age the same. LCM of 3 and 2 is 6.
Increase in the age of Julian
= 9 u - 4 u
= 5 u
5 u = 25
1 u = 25 ÷ 5 = 5
Julian's age now
= 9 u
= 9 x 5
= 45
Answer(s): 45