Paul and Riordan had some money at first. Paul received 3 times as much money as Riordan every week. At the end of 4 weeks, both of them had the same amount of money. If Riordan had $1200 at first and Paul had $1600 at the end of those 4 weeks, what is the ratio of Paul's money to the total amount of money at first?
| |
Paul |
Riordan |
| Before |
? |
$1200 |
| Change |
+ 3 u |
+ 1 u |
| After |
$1600 |
$1600 |
Amount that Riordan received every week
= 1600 - 1200
= $400
1 u = 400
Amount that Paul received every week
= 3 u
= 3 x 400
= $1200
Amount that Paul had at first
= 1600 - 1200
= $400
Total amount that Paul and Riordan had at first
= 1200 + 400
= $1600
Paul's amount : Total amount
400 : 1600
1 : 4
Answer(s): 1 : 4
