Charlie and Zeph had some money at first. Charlie received 2 times as much money as Zeph every month. At the end of 4 months, both of them had the same amount of money. If Zeph had $1300 at first and Charlie had $1800 at the end of those 4 months, what is the ratio of Charlie's money to the total amount of money at first?
| |
Charlie |
Zeph |
| Before |
? |
$1300 |
| Change |
+ 2 u |
+ 1 u |
| After |
$1800 |
$1800 |
Amount that Zeph received every month
= 1800 - 1300
= $500
1 u = 500
Amount that Charlie received every month
= 2 u
= 2 x 500
= $1000
Amount that Charlie had at first
= 1800 - 1000
= $800
Total amount that Charlie and Zeph had at first
= 1300 + 800
= $2100
Charlie's amount : Total amount
800 : 2100
8 : 21
Answer(s): 8 : 21
