Pamela had $70 less than Min. Min spent 0.4 of her money and Pamela spent 20% of her money. In the end, Min and Pamela had the same amount of money left. Find the amount of money that Min had at first.
| |
Pamela |
Min |
Comparing Min
and Pamela at first |
|
70 more |
| Before |
5x3 =
15 u |
5x4 =
20 u |
| Change |
- 1x3 =
- 3 u |
- 2x4 =
- 8 u |
| After |
4x3 =
12 u |
3x4 =
12 u |
0.4 =
410 =
25 20% =
20100 =
15 Pamela and Min had the same amount of money in the end. Make the amount that each had in the end the same. LCM of 3 and 4 is 12.
Amount that Pamela had less than Min at first
= 20 u - 15 u
= 5 u
5 u = 70
1 u = 70 ÷ 5 = 14
Amount that Min had at first
= 20 u
= 20 x 14
= $280
Answer(s): $280
