Zane's age is
23 his cousin's age now. 25 years ago, his age was
14 that of his cousin's. How old is Zane now?
|
Zane |
Zane's cousin |
Difference |
Before |
1x1 = 1 u |
4x1 = 4 u |
3x1 = 3 u |
Change |
+ 25 |
+ 25 |
|
After |
2x3 = 6 u |
3x3 = 9 u |
1x3 = 3 u |
The difference in the age between Zane and Zane's cousin remains unchanged. Make the difference in age the same. LCM of 3 and 1 is 3.
Increase in the age of Zane
= 6 u - 1 u
= 5 u
5 u = 25
1 u = 25 ÷ 5 = 5
Zane's age now
= 6 u
= 6 x 5
= 30
Answer(s): 30