Yoko, Ivory and Betty went shopping together. They brought a total of $1148 with them. Yoko spent 50% of her money. Ivory spent $107 and Betty spent twice as much money as Yoko. In the end, they had $723 left. How much money did Ivory and Betty have altogether in the end?
| |
Yoko |
Ivory |
Betty |
Total |
| Before |
2 u |
|
|
1148 |
| Change |
- 1 u |
- 107 |
- 2 u |
- 425 |
| After |
1 u |
? |
723 |
50% =
50100 =
12 Yoko spent: Yoko's total = 1 : 2
Amount that Betty spent
= 2 x 1 u
= 2 u
Amount that the three girls spent
= 1 u + 2 u + 107
= 3 u + 107
Amount that the three girls spent
= 1148 - 723
= $425
3 u + 107 = 425
3 u = 425 - 107
3 u = 318
1 u = 318 ÷ 3 = 106
Amount that Ivory and Betty had in the end
= 723 - 1 u
= 723 - 1 x 106
= 723 - 106
= $617
Answer(s): $617
