Gabby had $75 more than Risa. Gabby spent 0.6 of her money and Risa spent 40% of her money. In the end, Gabby and Risa had the same amount of money left. Find the amount of money that Gabby had in the end.
| |
Gabby |
Risa |
Comparing Gabby
and Risa at first |
75 more |
|
| Before |
5x3 =
15 u |
5x2 =
10 u |
| Change |
- 3x3 =
- 9 u |
- 2x2 =
- 4 u |
| After |
2x3 =
6 u |
3x2 =
6 u |
0.6 =
610 =
35 40% =
40100 =
25 Gabby and Risa had the same amount of money in the end. Make the amount that each had in the end the same. LCM of 2 and 3 is 6.
Amount that Gabby had more than Risa at first
= 15 u - 10 u
= 5 u
5 u = 75
1 u = 75 ÷ 5 = 15
Amount that Gabby had in the end
= 6 u
= 6 x 15
= $90
Answer(s): $90
