Barbara had $170 more than Min. Barbara spent 0.8 of her money and Min spent 40% of her money. In the end, Barbara and Min had the same amount of money left. Find the amount of money that Barbara had in the end.
| |
Barbara |
Min |
Comparing Barbara
and Min at first |
170 more |
|
| Before |
5x3 =
15 u |
5x1 =
5 u |
| Change |
- 4x3 =
- 12 u |
- 2x1 =
- 2 u |
| After |
1x3 =
3 u |
3x1 =
3 u |
0.8 =
810 =
45 40% =
40100 =
25 Barbara and Min had the same amount of money in the end. Make the amount that each had in the end the same. LCM of 1 and 3 is 3.
Amount that Barbara had more than Min at first
= 15 u - 5 u
= 10 u
10 u = 170
1 u = 170 ÷ 10 = 17
Amount that Barbara had in the end
= 3 u
= 3 x 17
= $51
Answer(s): $51
