Shiyun, Cathy and Ivory went shopping together. They brought a total of $1722 with them. Shiyun spent 25% of her money. Cathy spent $223 and Ivory spent four times as much money as Shiyun. In the end, they had $764 left. How much money did Cathy and Ivory have altogether in the end?
| |
Shiyun |
Cathy |
Ivory |
Total |
| Before |
4 u |
|
|
1722 |
| Change |
- 1 u |
- 223 |
- 4 u |
- 958 |
| After |
3 u |
? |
764 |
25% =
25100 =
14 Shiyun spent: Shiyun's total = 1 : 4
Amount that Ivory spent
= 4 x 1 u
= 4 u
Amount that the three girls spent
= 1 u + 4 u + 223
= 5 u + 223
Amount that the three girls spent
= 1722 - 764
= $958
5 u + 223 = 958
5 u = 958 - 223
5 u = 735
1 u = 735 ÷ 5 = 147
Amount that Cathy and Ivory had in the end
= 764 - 3 u
= 764 - 3 x 147
= 764 - 441
= $323
Answer(s): $323
