Risa and Nicole went shopping with a total of $224. After Risa spent
56 of her money and Nicole spent $35, the ratio of Nicole's money became 3 times as much as Risa's money. Find the ratio of Risa's money to Nicole's money at first.
| |
Risa |
Nicole |
| Before |
6 u |
3 u + 35 |
| Change |
- 5 u |
- 35 |
| After |
1 u |
|
| Comparing between Risa and Nicole in the end |
1 u |
3 u |
Total amount that Risa and Nicole had at first
= 6 u + 3 u + 35
= 9 u + 35
9 u + 35 = 224
6 u + 5 u = 224 - 35
9 u = 189
1 u = 189 ÷ 9 = 21
Amount that Risa had at first
= 6 u
= 6 x 21
= $126
Amount that Nicole had at first
= 224 - 126
= $98
At first
Risa : Nicole
126 : 98
9 : 7
Answer(s): 9 : 7
