Abi and Erika went shopping with a total of $280. After Abi spent
34 of her money and Erika spent $35, the ratio of Erika's money became 3 times as much as Abi's money. Find the ratio of Abi's money to Erika's money at first.
| |
Abi |
Erika |
| Before |
4 u |
3 u + 35 |
| Change |
- 3 u |
- 35 |
| After |
1 u |
|
| Comparing between Abi and Erika in the end |
1 u |
3 u |
Total amount that Abi and Erika had at first
= 4 u + 3 u + 35
= 7 u + 35
7 u + 35 = 280
4 u + 3 u = 280 - 35
7 u = 245
1 u = 245 ÷ 7 = 35
Amount that Abi had at first
= 4 u
= 4 x 35
= $140
Amount that Erika had at first
= 280 - 140
= $140
At first
Abi : Erika
140 : 140
1 : 1
Answer(s): 1 : 1
