Japheth and Andy had some money at first. Japheth received 2 times as much money as Andy every month. At the end of 4 months, both of them had the same amount of money. If Andy had $1440 at first and Japheth had $1980 at the end of those 4 months, what is the ratio of Japheth's money to the total amount of money at first?
| |
Japheth |
Andy |
| Before |
? |
$1440 |
| Change |
+ 2 u |
+ 1 u |
| After |
$1980 |
$1980 |
Amount that Andy received every month
= 1980 - 1440
= $540
1 u = 540
Amount that Japheth received every month
= 2 u
= 2 x 540
= $1080
Amount that Japheth had at first
= 1980 - 1080
= $900
Total amount that Japheth and Andy had at first
= 1440 + 900
= $2340
Japheth's amount : Total amount
900 : 2340
5 : 13
Answer(s): 5 : 13
