Risa, Raeann and Opal went shopping together. They brought a total of $1260 with them. Risa spent 40% of her money. Raeann spent $300 and Opal spent thrice as much money as Risa. In the end, they had $480 left. How much money did Raeann and Opal have altogether in the end?
| |
Risa |
Raeann |
Opal |
Total |
| Before |
5 u |
|
|
1260 |
| Change |
- 2 u |
- 300 |
- 6 u |
- 780 |
| After |
3 u |
? |
480 |
40% =
40100 =
25 Risa spent: Risa's total = 2 : 5
Amount that Opal spent
= 3 x 2 u
= 6 u
Amount that the three girls spent
= 2 u + 6 u + 300
= 8 u + 300
Amount that the three girls spent
= 1260 - 480
= $780
8 u + 300 = 780
8 u = 780 - 300
8 u = 480
1 u = 480 ÷ 8 = 60
Amount that Raeann and Opal had in the end
= 480 - 3 u
= 480 - 3 x 60
= 480 - 180
= $300
Answer(s): $300
