Opal, Winnie and Xylia went shopping together. They brought a total of $1734 with them. Opal spent 30% of her money. Winnie spent $159 and Xylia spent four times as much money as Opal. In the end, they had $795 left. How much money did Winnie and Xylia have altogether in the end?
| |
Opal |
Winnie |
Xylia |
Total |
| Before |
10 u |
|
|
1734 |
| Change |
- 3 u |
- 159 |
- 12 u |
- 939 |
| After |
7 u |
? |
795 |
30% =
30100 =
310 Opal spent: Opal's total = 3 : 10
Amount that Xylia spent
= 4 x 3 u
= 12 u
Amount that the three girls spent
= 3 u + 12 u + 159
= 15 u + 159
Amount that the three girls spent
= 1734 - 795
= $939
15 u + 159 = 939
15 u = 939 - 159
15 u = 780
1 u = 780 ÷ 15 = 52
Amount that Winnie and Xylia had in the end
= 795 - 7 u
= 795 - 7 x 52
= 795 - 364
= $431
Answer(s): $431
