Carl and Ethan had some money at first. Carl received 3 times as much money as Ethan every fortnight. At the end of 2 fortnights, both of them had the same amount of money. If Ethan had $1320 at first and Carl had $1920 at the end of those 2 fortnights, what is the ratio of Carl's money to the total amount of money at first?
|
Carl |
Ethan |
Before |
? |
$1320 |
Change |
+ 3 u |
+ 1 u |
After |
$1920 |
$1920 |
Amount that Ethan received every fortnight
= 1920 - 1320
= $600
1 u = 600
Amount that Carl received every fortnight
= 3 u
= 3 x 600
= $1800
Amount that Carl had at first
= 1920 - 1800
= $120
Total amount that Carl and Ethan had at first
= 1320 + 120
= $1440
Carl's amount : Total amount
120 : 1440
1 : 12
Answer(s): 1 : 12