Rachel, Gillian and Min went shopping together. They brought a total of $2070 with them. Rachel spent 40% of her money. Gillian spent $280 and Min spent thrice as much money as Rachel. In the end, they had $638 left. How much money did Gillian and Min have altogether in the end?
| |
Rachel |
Gillian |
Min |
Total |
| Before |
5 u |
|
|
2070 |
| Change |
- 2 u |
- 280 |
- 6 u |
- 1432 |
| After |
3 u |
? |
638 |
40% =
40100 =
25 Rachel spent: Rachel's total = 2 : 5
Amount that Min spent
= 3 x 2 u
= 6 u
Amount that the three girls spent
= 2 u + 6 u + 280
= 8 u + 280
Amount that the three girls spent
= 2070 - 638
= $1432
8 u + 280 = 1432
8 u = 1432 - 280
8 u = 1152
1 u = 1152 ÷ 8 = 144
Amount that Gillian and Min had in the end
= 638 - 3 u
= 638 - 3 x 144
= 638 - 432
= $206
Answer(s): $206
