Lynn had $231 less than Min. Min spent
38 of her money and Lynn spent
45 of her money. In the end, Min had 4 times as much as Lynn. Find the amount of money Min had at first.
| |
Min |
Lynn |
Comparing Min
and Lynn at first |
$231 more |
|
| Before |
8x4 =
32 u |
5x5 =
25 u |
| Change |
- 3x4 =
- 12 u |
- 4x5 =
- 20 u |
| After |
5x4 =
20 u |
1x5 =
5 u |
Comparing Min
and Lynn in the end |
4x5 =
20 u |
1x5 =
5 u |
The amount that Min had in the end is repeated. Make the amount that Min had in the end the same. LCM of 4 and 5 is 20.
Amount that Lynn had less than Min
= 32 u - 25 u
= 7 u
7 u = 231
1 u = 231 ÷ 7 = 33
Amount that Min had at first
= 32 u
= 32 x 33
= $1056
Answer(s): $1056
