Yoko and Min went shopping with a total of $450. After Yoko spent
45 of her money and Min spent $99, the ratio of Min's money became 4 times as much as Yoko's money. Find the ratio of Yoko's money to Min's money at first.
| |
Yoko |
Min |
| Before |
5 u |
4 u + 99 |
| Change |
- 4 u |
- 99 |
| After |
1 u |
|
| Comparing between Yoko and Min in the end |
1 u |
4 u |
Total amount that Yoko and Min had at first
= 5 u + 4 u + 99
= 9 u + 99
9 u + 99 = 450
5 u + 4 u = 450 - 99
9 u = 351
1 u = 351 ÷ 9 = 39
Amount that Yoko had at first
= 5 u
= 5 x 39
= $195
Amount that Min had at first
= 450 - 195
= $255
At first
Yoko : Min
195 : 255
13 : 17
Answer(s): 13 : 17
