Gem, Gillian and Irene went shopping together. They brought a total of $1050 with them. Gem spent 25% of her money. Gillian spent $200 and Irene spent four times as much money as Gem. In the end, they had $560 left. How much money did Gillian and Irene have altogether in the end?
| |
Gem |
Gillian |
Irene |
Total |
| Before |
4 u |
|
|
1050 |
| Change |
- 1 u |
- 200 |
- 4 u |
- 490 |
| After |
3 u |
? |
560 |
25% =
25100 =
14 Gem spent: Gem's total = 1 : 4
Amount that Irene spent
= 4 x 1 u
= 4 u
Amount that the three girls spent
= 1 u + 4 u + 200
= 5 u + 200
Amount that the three girls spent
= 1050 - 560
= $490
5 u + 200 = 490
5 u = 490 - 200
5 u = 290
1 u = 290 ÷ 5 = 58
Amount that Gillian and Irene had in the end
= 560 - 3 u
= 560 - 3 x 58
= 560 - 174
= $386
Answer(s): $386
