Sarah, Wendy and Joelle went shopping together. They brought a total of $1216 with them. Sarah spent 40% of her money. Wendy spent $115 and Joelle spent twice as much money as Sarah. In the end, they had $771 left. How much money did Wendy and Joelle have altogether in the end?
| |
Sarah |
Wendy |
Joelle |
Total |
| Before |
5 u |
|
|
1216 |
| Change |
- 2 u |
- 115 |
- 4 u |
- 445 |
| After |
3 u |
? |
771 |
40% =
40100 =
25 Sarah spent: Sarah's total = 2 : 5
Amount that Joelle spent
= 2 x 2 u
= 4 u
Amount that the three girls spent
= 2 u + 4 u + 115
= 6 u + 115
Amount that the three girls spent
= 1216 - 771
= $445
6 u + 115 = 445
6 u = 445 - 115
6 u = 330
1 u = 330 ÷ 6 = 55
Amount that Wendy and Joelle had in the end
= 771 - 3 u
= 771 - 3 x 55
= 771 - 165
= $606
Answer(s): $606
