Tom and Ryan had some money at first. Tom received 3 times as much money as Ryan every week. At the end of 2 weeks, both of them had the same amount of money. If Ryan had $1320 at first and Tom had $1860 at the end of those 2 weeks, what is the ratio of Tom's money to the total amount of money at first?
| |
Tom |
Ryan |
| Before |
? |
$1320 |
| Change |
+ 3 u |
+ 1 u |
| After |
$1860 |
$1860 |
Amount that Ryan received every week
= 1860 - 1320
= $540
1 u = 540
Amount that Tom received every week
= 3 u
= 3 x 540
= $1620
Amount that Tom had at first
= 1860 - 1620
= $240
Total amount that Tom and Ryan had at first
= 1320 + 240
= $1560
Tom's amount : Total amount
240 : 1560
2 : 13
Answer(s): 2 : 13
