Last week, Gillian had twice as much savings as Fred. This week, Fred saves $210. As a result, he now has four times as much savings as Gillian. What was their total savings at first?
| |
Gillian |
Fred |
Total |
| Before |
2 u |
1 u |
3 u |
| Change |
|
+ $210 |
|
| After |
1x2 =
2 u |
4x2 =
8 u |
|
The amount of savings that Gillian has at first and in the end remains unchanged. Make the amount of savings that Gillian has the same. LCM of 2 and 1 is 2.
Amount that Fred saved
= 8 u - 1 u
= 7 u
7 u = 210
1 u = 210 ÷ 7 = 30
Total savings at first
= 2 u + 1 u
= 3 u
= 3 x 30
= $90
Answer(s): $90
