Last week, Kathy had twice as much savings as Tim. This week, Tim saves $700. As a result, he now has four times as much savings as Kathy. What was their total savings at first?
| |
Kathy |
Tim |
Total |
| Before |
2 u |
1 u |
3 u |
| Change |
|
+ $700 |
|
| After |
1x2 =
2 u |
4x2 =
8 u |
|
The amount of savings that Kathy has at first and in the end remains unchanged. Make the amount of savings that Kathy has the same. LCM of 2 and 1 is 2.
Amount that Tim saved
= 8 u - 1 u
= 7 u
7 u = 700
1 u = 700 ÷ 7 = 100
Total savings at first
= 2 u + 1 u
= 3 u
= 3 x 100
= $300
Answer(s): $300
