The age of Charlie is
47 of Seth's age. 44 years later, the ratio of Charlie's age to Seth's age is 5 : 6. How old is Seth at first?
|
Charlie |
Seth |
Difference |
Before |
4 u |
7 u |
3 u |
Change |
+ 44 |
+ 44 |
|
After |
5x3 = 15 u |
6x3 = 18 u |
1x3 = 3 u |
The difference in the age between Charlie and Seth at first and in the end remains unchanged. Make the difference in the age between Charlie and Seth the same. LCM of 3 and 1 is 3.
Increase in Charlie's age
= 15 u - 4 u
= 11 u
11 u = 44
1 u = 44 ÷ 11 = 4
Seth's age at first
= 7 u
= 7 x 4
= 28
Answer(s): 28