Irene had $77 less than Xandra. Xandra spent 0.6 of her money and Irene spent 25% of her money. In the end, Xandra and Irene had the same amount of money left. Find the amount of money that Xandra had at first.
| |
Irene |
Xandra |
Comparing Xandra
and Irene at first |
|
77 more |
| Before |
4x2 =
8 u |
5x3 =
15 u |
| Change |
- 1x2 =
- 2 u |
- 3x3 =
- 9 u |
| After |
3x2 =
6 u |
2x3 =
6 u |
0.6 =
610 =
35 25% =
25100 =
14 Irene and Xandra 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 Irene had less than Xandra at first
= 15 u - 8 u
= 7 u
7 u = 77
1 u = 77 ÷ 7 = 11
Amount that Xandra had at first
= 15 u
= 15 x 11
= $165
Answer(s): $165
