Ivory, Tina and Min went shopping together. They brought a total of $1160 with them. Ivory spent 25% of her money. Tina spent $101 and Min spent twice as much money as Ivory. In the end, they had $729 left. How much money did Tina and Min have altogether in the end?
| |
Ivory |
Tina |
Min |
Total |
| Before |
4 u |
|
|
1160 |
| Change |
- 1 u |
- 101 |
- 2 u |
- 431 |
| After |
3 u |
? |
729 |
25% =
25100 =
14 Ivory spent: Ivory's total = 1 : 4
Amount that Min spent
= 2 x 1 u
= 2 u
Amount that the three girls spent
= 1 u + 2 u + 101
= 3 u + 101
Amount that the three girls spent
= 1160 - 729
= $431
3 u + 101 = 431
3 u = 431 - 101
3 u = 330
1 u = 330 ÷ 3 = 110
Amount that Tina and Min had in the end
= 729 - 3 u
= 729 - 3 x 110
= 729 - 330
= $399
Answer(s): $399
