Lucy had $600 more than Hilda. Lucy spent 0.6 of her money and Hilda spent 10% of her money. In the end, Lucy and Hilda had the same amount of money left. Find the amount of money that Lucy had in the end.
| |
Lucy |
Hilda |
Comparing Lucy
and Hilda at first |
600 more |
|
| Before |
5x9 =
45 u |
10x2 =
20 u |
| Change |
- 3x9 =
- 27 u |
- 1x2 =
- 2 u |
| After |
2x9 =
18 u |
9x2 =
18 u |
0.6 =
610 =
35 10% =
10100 =
110 Lucy and Hilda had the same amount of money in the end. Make the amount that each had in the end the same. LCM of 2 and 9 is 18.
Amount that Lucy had more than Hilda at first
= 45 u - 20 u
= 25 u
25 u = 600
1 u = 600 ÷ 25 = 24
Amount that Lucy had in the end
= 18 u
= 18 x 24
= $432
Answer(s): $432
