Gwen, Eva and Nicole went shopping together. They brought a total of $1150 with them. Gwen spent 50% of her money. Eva spent $280 and Nicole spent twice as much money as Gwen. In the end, they had $699 left. How much money did Eva and Nicole have altogether in the end?
| |
Gwen |
Eva |
Nicole |
Total |
| Before |
2 u |
|
|
1150 |
| Change |
- 1 u |
- 280 |
- 2 u |
- 451 |
| After |
1 u |
? |
699 |
50% =
50100 =
12 Gwen spent: Gwen's total = 1 : 2
Amount that Nicole spent
= 2 x 1 u
= 2 u
Amount that the three girls spent
= 1 u + 2 u + 280
= 3 u + 280
Amount that the three girls spent
= 1150 - 699
= $451
3 u + 280 = 451
3 u = 451 - 280
3 u = 171
1 u = 171 ÷ 3 = 57
Amount that Eva and Nicole had in the end
= 699 - 1 u
= 699 - 1 x 57
= 699 - 57
= $642
Answer(s): $642
