Seth and Ryan had some money at first. Seth received 3 times as much money as Ryan every fortnight. At the end of 6 fortnights, both of them had the same amount of money. If Ryan had $1380 at first and Seth had $1920 at the end of those 6 fortnights, what is the ratio of Seth's money to the total amount of money at first?
| |
Seth |
Ryan |
| Before |
? |
$1380 |
| Change |
+ 3 u |
+ 1 u |
| After |
$1920 |
$1920 |
Amount that Ryan received every fortnight
= 1920 - 1380
= $540
1 u = 540
Amount that Seth received every fortnight
= 3 u
= 3 x 540
= $1620
Amount that Seth had at first
= 1920 - 1620
= $300
Total amount that Seth and Ryan had at first
= 1380 + 300
= $1680
Seth's amount : Total amount
300 : 1680
5 : 28
Answer(s): 5 : 28
