Xuan and Sabrina went shopping with a total of $945. After Xuan spent
45 of her money and Sabrina spent $35, the ratio of Sabrina's money became 5 times as much as Xuan's money. Find the ratio of Xuan's money to Sabrina's money at first.
| |
Xuan |
Sabrina |
| Before |
5 u |
5 u + 35 |
| Change |
- 4 u |
- 35 |
| After |
1 u |
|
| Comparing between Xuan and Sabrina in the end |
1 u |
5 u |
Total amount that Xuan and Sabrina had at first
= 5 u + 5 u + 35
= 10 u + 35
10 u + 35 = 945
5 u + 4 u = 945 - 35
10 u = 910
1 u = 910 ÷ 10 = 91
Amount that Xuan had at first
= 5 u
= 5 x 91
= $455
Amount that Sabrina had at first
= 945 - 455
= $490
At first
Xuan : Sabrina
455 : 490
13 : 14
Answer(s): 13 : 14
