Xandra had $135 more than Oscar. Xandra spent
23 of her money and Oscar spent
37 of his money. In the end, Oscar and Xandra had the same amount of money left. Find the amount of money Oscar had at first.
| |
Xandra |
Oscar |
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 Xandra left
= 1 -
23 =
13 Fraction of money that Oscar left
= 1 -
37 =
47 The amount of money that Oscar and Xandra had in the end is the same. Make the amount of money that Oscar and Xandra had in the end the same. LCM of 1 and 4 is 4.
Amount that Xandra had more than Oscar at first
= 12 u - 7 u
= 5 u
5 u = 135
1 u = 135 ÷ 5 = 27
Amount that Oscar had at first
= 7 u
= 7 x 27
= $189
Answer(s): $189
