Winnie had $20 more than Lynn at first. Lynn spent
79 of her money and Winnie spent
45 of her money. Given that they had equal amount of money left, how many much did Lynn have at first?
| |
Winnie |
Lynn |
More |
Before |
9x1 =
9 u |
5x2 =
10 u |
1 u |
Change |
- 7x1 =
- 7 u |
- 4x2 =
- 8 u |
|
After |
2x1 =
2 u |
1x2 =
2 u |
|
Fraction of money that Lynn had left
= 1 -
79 =
29 Fraction of money that Winnie had left
= 1 -
45 =
15 The amount that Winnie and Lynn had left is the same. Make the amount that Winnie and Lynn had left is the same. LCM of 2 and 1 is 2.
Amount that Lynn had at first = 9 u
Amount that Winnie had at first = 10 u
Amount that Winnie had more than Lynn at first
= 10 u - 9 u
= 1 u
= $20
Amount that Lynn had at first
= 9 u
= 9 x 20
= $180
Answer(s): $180
