Last month, Jean had four times as much savings as Mark. This month, Mark saves $660. As a result, he now has thrice as much savings as Jean. What was their total savings at first?
| |
Jean |
Mark |
Total |
| Before |
4 u |
1 u |
5 u |
| Change |
|
+ $660 |
|
| After |
1x4 =
4 u |
3x4 =
12 u |
|
The amount of savings that Jean has at first and in the end remains unchanged. Make the amount of savings that Jean has the same. LCM of 4 and 1 is 4.
Amount that Mark saved
= 12 u - 1 u
= 11 u
11 u = 660
1 u = 660 ÷ 11 = 60
Total savings at first
= 4 u + 1 u
= 5 u
= 5 x 60
= $300
Answer(s): $300
