Min and Xuan went shopping with a total of $544. After Min spent
45 of her money and Xuan spent $32, the ratio of Xuan's money became 3 times as much as Min's money. Find the ratio of Min's money to Xuan's money at first.
| |
Min |
Xuan |
| Before |
5 u |
3 u + 32 |
| Change |
- 4 u |
- 32 |
| After |
1 u |
|
| Comparing between Min and Xuan in the end |
1 u |
3 u |
Total amount that Min and Xuan had at first
= 5 u + 3 u + 32
= 8 u + 32
8 u + 32 = 544
5 u + 4 u = 544 - 32
8 u = 512
1 u = 512 ÷ 8 = 64
Amount that Min had at first
= 5 u
= 5 x 64
= $320
Amount that Xuan had at first
= 544 - 320
= $224
At first
Min : Xuan
320 : 224
10 : 7
Answer(s): 10 : 7
