Charlie's age is
23 his cousin's age now. 8 years ago, his age was
25 that of his cousin's. How old is Charlie now?
| |
Charlie |
Charlie's cousin |
Difference |
| Before |
2x1 =
2 u |
5x1 =
5 u |
3x1 =
3 u |
| Change |
+ 8 |
+ 8 |
|
| After |
2x3 =
6 u |
3x3 =
9 u |
1x3 =
3 u |
The difference in the age between Charlie and Charlie's cousin remains unchanged. Make the difference in age the same. LCM of 3 and 1 is 3.
Increase in the age of Charlie
= 6 u - 2 u
= 4 u
4 u = 8
1 u = 8 ÷ 4 = 2
Charlie's age now
= 6 u
= 6 x 2
= 12
Answer(s): 12
