Lynn had $30 more than Sarah at first. Sarah spent
25 of her money and Lynn spent
12 of her money. Given that they had equal amount of money left, how many much did Sarah have at first?
| |
Lynn |
Sarah |
More |
Before |
5x1 =
5 u |
2x3 =
6 u |
1 u |
Change |
- 2x1 =
- 2 u |
- 1x3 =
- 3 u |
|
After |
3x1 =
3 u |
1x3 =
3 u |
|
Fraction of money that Sarah had left
= 1 -
25 =
35 Fraction of money that Lynn had left
= 1 -
12 =
12 The amount that Lynn and Sarah had left is the same. Make the amount that Lynn and Sarah had left is the same. LCM of 3 and 1 is 3.
Amount that Sarah had at first = 5 u
Amount that Lynn had at first = 6 u
Amount that Lynn had more than Sarah at first
= 6 u - 5 u
= 1 u
= $30
Amount that Sarah had at first
= 5 u
= 5 x 30
= $150
Answer(s): $150
