Ivory, Risa and Yoko went shopping together. They brought a total of $1814 with them. Ivory spent 50% of her money. Risa spent $250 and Yoko spent four times as much money as Ivory. In the end, they had $689 left. How much money did Risa and Yoko have altogether in the end?
| |
Ivory |
Risa |
Yoko |
Total |
| Before |
2 u |
|
|
1814 |
| Change |
- 1 u |
- 250 |
- 4 u |
- 1125 |
| After |
1 u |
? |
689 |
50% =
50100 =
12 Ivory spent: Ivory's total = 1 : 2
Amount that Yoko spent
= 4 x 1 u
= 4 u
Amount that the three girls spent
= 1 u + 4 u + 250
= 5 u + 250
Amount that the three girls spent
= 1814 - 689
= $1125
5 u + 250 = 1125
5 u = 1125 - 250
5 u = 875
1 u = 875 ÷ 5 = 175
Amount that Risa and Yoko had in the end
= 689 - 1 u
= 689 - 1 x 175
= 689 - 175
= $514
Answer(s): $514
