Cathy had $136 more than Warren. Cathy spent
23 of her money and Warren spent
47 of his money. In the end, Warren and Cathy had the same amount of money left. Find the amount of money Warren had at first.
| |
Cathy |
Warren |
More |
Before |
3x3 =
9 u |
7 u |
2 u |
Change |
- 2x3 =
- 6 u |
- 4 u |
|
After |
1x3 =
3 u |
3 u |
|
Fraction of money that Cathy left
= 1 -
23 =
13 Fraction of money that Warren left
= 1 -
47 =
37 The amount of money that Warren and Cathy had in the end is the same. Make the amount of money that Warren and Cathy had in the end the same. LCM of 1 and 3 is 3.
Amount that Cathy had more than Warren at first
= 9 u - 7 u
= 2 u
2 u = 136
1 u = 136 ÷ 2 = 68
Amount that Warren had at first
= 7 u
= 7 x 68
= $476
Answer(s): $476
