Brandon and Carl had some money at first. Brandon received 2 times as much money as Carl every month. At the end of 4 months, both of them had the same amount of money. If Carl had $1080 at first and Brandon had $1680 at the end of those 4 months, what is the ratio of Brandon's money to the total amount of money at first?
| |
Brandon |
Carl |
| Before |
? |
$1080 |
| Change |
+ 2 u |
+ 1 u |
| After |
$1680 |
$1680 |
Amount that Carl received every month
= 1680 - 1080
= $600
1 u = 600
Amount that Brandon received every month
= 2 u
= 2 x 600
= $1200
Amount that Brandon had at first
= 1680 - 1200
= $480
Total amount that Brandon and Carl had at first
= 1080 + 480
= $1560
Brandon's amount : Total amount
480 : 1560
4 : 13
Answer(s): 4 : 13
