Min and Jean had $116 at first. Min spent
58 of her money and Jean spent
34 of her money. Given that they had $46 left, how much did Min have at first?
|
Min |
Jean |
Total |
Before |
8 u |
4 p |
$116 |
Change |
- 5 u |
- 3 p |
|
After |
3 u |
1 p |
$46 |
8 u + 4 p = 116 --- (1)
3 u + 1 p = 46 --- (2)
(2) x 4 12 u + 4 p = 184 --- (3)
(3) - (1)
12 u - 8 u = 184 - 116
4 u = 68
1 u = 68 ÷ 4 = 17
Amount that Min had at first
= 8 u
= 8 x 17
= $136
Answer(s): $136