Mark and Ken had some money at first. Mark received 4 times as much money as Ken every month. At the end of 4 months, both of them had the same amount of money. If Ken had $1260 at first and Mark had $1640 at the end of those 4 months, what is the ratio of Mark's money to the total amount of money at first?
| |
Mark |
Ken |
| Before |
? |
$1260 |
| Change |
+ 4 u |
+ 1 u |
| After |
$1640 |
$1640 |
Amount that Ken received every month
= 1640 - 1260
= $380
1 u = 380
Amount that Mark received every month
= 4 u
= 4 x 380
= $1520
Amount that Mark had at first
= 1640 - 1520
= $120
Total amount that Mark and Ken had at first
= 1260 + 120
= $1380
Mark's amount : Total amount
120 : 1380
2 : 23
Answer(s): 2 : 23
