Mary, Nicole and Penelope went shopping together. They brought a total of $1548 with them. Mary spent 40% of her money. Nicole spent $260 and Penelope spent four times as much money as Mary. In the end, they had $638 left. How much money did Nicole and Penelope have altogether in the end?
| |
Mary |
Nicole |
Penelope |
Total |
| Before |
5 u |
|
|
1548 |
| Change |
- 2 u |
- 260 |
- 8 u |
- 910 |
| After |
3 u |
? |
638 |
40% =
40100 =
25 Mary spent: Mary's total = 2 : 5
Amount that Penelope spent
= 4 x 2 u
= 8 u
Amount that the three girls spent
= 2 u + 8 u + 260
= 10 u + 260
Amount that the three girls spent
= 1548 - 638
= $910
10 u + 260 = 910
10 u = 910 - 260
10 u = 650
1 u = 650 ÷ 10 = 65
Amount that Nicole and Penelope had in the end
= 638 - 3 u
= 638 - 3 x 65
= 638 - 195
= $443
Answer(s): $443
