Gabby and Sabrina went shopping with a total of $558. After Gabby spent
56 of her money and Sabrina spent $72, the ratio of Sabrina's money became 3 times as much as Gabby's money. Find the ratio of Gabby's money to Sabrina's money at first.
| |
Gabby |
Sabrina |
| Before |
6 u |
3 u + 72 |
| Change |
- 5 u |
- 72 |
| After |
1 u |
|
| Comparing between Gabby and Sabrina in the end |
1 u |
3 u |
Total amount that Gabby and Sabrina had at first
= 6 u + 3 u + 72
= 9 u + 72
9 u + 72 = 558
6 u + 5 u = 558 - 72
9 u = 486
1 u = 486 ÷ 9 = 54
Amount that Gabby had at first
= 6 u
= 6 x 54
= $324
Amount that Sabrina had at first
= 558 - 324
= $234
At first
Gabby : Sabrina
324 : 234
18 : 13
Answer(s): 18 : 13
