Joelle had $270 more than Jane. Joelle spent 0.8 of her money and Jane spent 20% of her money. In the end, Joelle and Jane had the same amount of money left. Find the amount of money that Joelle had in the end.
| |
Joelle |
Jane |
Comparing Joelle
and Jane at first |
270 more |
|
| Before |
5x4 =
20 u |
5x1 =
5 u |
| Change |
- 4x4 =
- 16 u |
- 1x1 =
- 1 u |
| After |
1x4 =
4 u |
4x1 =
4 u |
0.8 =
810 =
45 20% =
20100 =
15 Joelle and Jane had the same amount of money in the end. Make the amount that each had in the end the same. LCM of 1 and 4 is 4.
Amount that Joelle had more than Jane at first
= 20 u - 5 u
= 15 u
15 u = 270
1 u = 270 ÷ 15 = 18
Amount that Joelle had in the end
= 4 u
= 4 x 18
= $72
Answer(s): $72
