Cathy, Jade and Gwen went shopping together. They brought a total of $1317 with them. Cathy spent 50% of her money. Jade spent $138 and Gwen spent four times as much money as Cathy. In the end, they had $544 left. How much money did Jade and Gwen have altogether in the end?
| |
Cathy |
Jade |
Gwen |
Total |
| Before |
2 u |
|
|
1317 |
| Change |
- 1 u |
- 138 |
- 4 u |
- 773 |
| After |
1 u |
? |
544 |
50% =
50100 =
12 Cathy spent: Cathy's total = 1 : 2
Amount that Gwen spent
= 4 x 1 u
= 4 u
Amount that the three girls spent
= 1 u + 4 u + 138
= 5 u + 138
Amount that the three girls spent
= 1317 - 544
= $773
5 u + 138 = 773
5 u = 773 - 138
5 u = 635
1 u = 635 ÷ 5 = 127
Amount that Jade and Gwen had in the end
= 544 - 1 u
= 544 - 1 x 127
= 544 - 127
= $417
Answer(s): $417
