Emma had $220 less than Zoe. Zoe spent 0.8 of her money and Emma spent 25% of her money. In the end, Zoe and Emma had the same amount of money left. Find the amount of money that Zoe had at first.
| |
Emma |
Zoe |
Comparing Zoe
and Emma at first |
|
220 more |
| Before |
4x1 =
4 u |
5x3 =
15 u |
| Change |
- 1x1 =
- 1 u |
- 4x3 =
- 12 u |
| After |
3x1 =
3 u |
1x3 =
3 u |
0.8 =
810 =
45 25% =
25100 =
14 Emma and Zoe had the same amount of money in the end. Make the amount that each had in the end the same. LCM of 1 and 3 is 3.
Amount that Emma had less than Zoe at first
= 15 u - 4 u
= 11 u
11 u = 220
1 u = 220 ÷ 11 = 20
Amount that Zoe had at first
= 15 u
= 15 x 20
= $300
Answer(s): $300
