Lucy, Nora and Xuan went shopping together. They brought a total of $1127 with them. Lucy spent 20% of her money. Nora spent $172 and Xuan spent four times as much money as Lucy. In the end, they had $565 left. How much money did Nora and Xuan have altogether in the end?
| |
Lucy |
Nora |
Xuan |
Total |
| Before |
5 u |
|
|
1127 |
| Change |
- 1 u |
- 172 |
- 4 u |
- 562 |
| After |
4 u |
? |
565 |
20% =
20100 =
15 Lucy spent: Lucy's total = 1 : 5
Amount that Xuan spent
= 4 x 1 u
= 4 u
Amount that the three girls spent
= 1 u + 4 u + 172
= 5 u + 172
Amount that the three girls spent
= 1127 - 565
= $562
5 u + 172 = 562
5 u = 562 - 172
5 u = 390
1 u = 390 ÷ 5 = 78
Amount that Nora and Xuan had in the end
= 565 - 4 u
= 565 - 4 x 78
= 565 - 312
= $253
Answer(s): $253
