Yen, Vanessa and Risa went shopping together. They brought a total of $1412 with them. Yen spent 40% of her money. Vanessa spent $103 and Risa spent four times as much money as Yen. In the end, they had $439 left. How much money did Vanessa and Risa have altogether in the end?
| |
Yen |
Vanessa |
Risa |
Total |
| Before |
5 u |
|
|
1412 |
| Change |
- 2 u |
- 103 |
- 8 u |
- 973 |
| After |
3 u |
? |
439 |
40% =
40100 =
25 Yen spent: Yen's total = 2 : 5
Amount that Risa spent
= 4 x 2 u
= 8 u
Amount that the three girls spent
= 2 u + 8 u + 103
= 10 u + 103
Amount that the three girls spent
= 1412 - 439
= $973
10 u + 103 = 973
10 u = 973 - 103
10 u = 870
1 u = 870 ÷ 10 = 87
Amount that Vanessa and Risa had in the end
= 439 - 3 u
= 439 - 3 x 87
= 439 - 261
= $178
Answer(s): $178
