Last month, Eva had twice as much savings as Ken. This month, Ken saves $400. As a result, he now has thrice as much savings as Eva. What was their total savings at first?
| |
Eva |
Ken |
Total |
| Before |
2 u |
1 u |
3 u |
| Change |
|
+ $400 |
|
| After |
1x2 =
2 u |
3x2 =
6 u |
|
The amount of savings that Eva has at first and in the end remains unchanged. Make the amount of savings that Eva has the same. LCM of 2 and 1 is 2.
Amount that Ken saved
= 6 u - 1 u
= 5 u
5 u = 400
1 u = 400 ÷ 5 = 80
Total savings at first
= 2 u + 1 u
= 3 u
= 3 x 80
= $240
Answer(s): $240
