Yen had $21 more than Lucy at first. Lucy spent
25 of her money and Yen spent
12 of her money. Given that they had equal amount of money left, how many much did Lucy have at first?
| |
Yen |
Lucy |
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 Lucy had left
= 1 -
25 =
35 Fraction of money that Yen had left
= 1 -
12 =
12 The amount that Yen and Lucy had left is the same. Make the amount that Yen and Lucy had left is the same. LCM of 3 and 1 is 3.
Amount that Lucy had at first = 5 u
Amount that Yen had at first = 6 u
Amount that Yen had more than Lucy at first
= 6 u - 5 u
= 1 u
= $21
Amount that Lucy had at first
= 5 u
= 5 x 21
= $105
Answer(s): $105
