On Tuesday, Min, Marion, Jen and Irene spent a total of $125. On Wednesday, Min spent twice of what she spent on Tuesday, Marion spent the same as what she spent on Tuesday, Jen spent $14 less than what she spent on Tuesday, and Irene spent $1 more than what she spent on Tuesday. All of them spent an equal amount on Wednesday. How much did Min and Irene spend altogether on Tuesday?
| |
Min |
Marion |
Jen |
Irene |
Total |
| Before |
1 u |
2 u |
2 u + $14 |
2 u - $1 |
$125 |
| Change |
x 2 |
|
- $14 |
+ $1 |
|
| After |
2 u |
2 u |
2 u |
2 u |
|
Total amount that the four girls spent on Tuesday
= 1 u + 2 u + 2 u + 14 + 2 u - 1
= 7 u + 14 - 1
= 7 u + 13
7 u + 13 = 125
7 u = 125 - 13
7 u = 112
1 u = 112 ÷ 7 = 16
Total amount that Min and Irene spent on Tuesday
= 1 u + 2 u - 1
= 3 u - 1
= 3 x 16 - 1
= 48 - 1
= $47
Answer(s): $47
