Jane, Usha and Risa went shopping together. They brought a total of $1132 with them. Jane spent 50% of her money. Usha spent $172 and Risa spent twice as much money as Jane. In the end, they had $468 left. How much money did Usha and Risa have altogether in the end?
| |
Jane |
Usha |
Risa |
Total |
| Before |
2 u |
|
|
1132 |
| Change |
- 1 u |
- 172 |
- 2 u |
- 664 |
| After |
1 u |
? |
468 |
50% =
50100 =
12 Jane spent: Jane's total = 1 : 2
Amount that Risa spent
= 2 x 1 u
= 2 u
Amount that the three girls spent
= 1 u + 2 u + 172
= 3 u + 172
Amount that the three girls spent
= 1132 - 468
= $664
3 u + 172 = 664
3 u = 664 - 172
3 u = 492
1 u = 492 ÷ 3 = 164
Amount that Usha and Risa had in the end
= 468 - 1 u
= 468 - 1 x 164
= 468 - 164
= $304
Answer(s): $304
