Eva had $115 more than Mark. Eva spent
23 of her money and Mark spent
37 of his money. In the end, Mark and Eva had the same amount of money left. Find the amount of money Mark had at first.
| |
Eva |
Mark |
More |
Before |
3x4 =
12 u |
7 u |
5 u |
Change |
- 2x4 =
- 8 u |
- 3 u |
|
After |
1x4 =
4 u |
4 u |
|
Fraction of money that Eva left
= 1 -
23 =
13 Fraction of money that Mark left
= 1 -
37 =
47 The amount of money that Mark and Eva had in the end is the same. Make the amount of money that Mark and Eva had in the end the same. LCM of 1 and 4 is 4.
Amount that Eva had more than Mark at first
= 12 u - 7 u
= 5 u
5 u = 115
1 u = 115 ÷ 5 = 23
Amount that Mark had at first
= 7 u
= 7 x 23
= $161
Answer(s): $161
