Cindy had $183 more than Billy. Cindy spent
23 of her money and Billy spent
13 of his money. In the end, Billy and Cindy had the same amount of money left. Find the amount of money Billy had at first.
| |
Cindy |
Billy |
More |
Before |
3x2 =
6 u |
3 u |
3 u |
Change |
- 2x2 =
- 4 u |
- 1 u |
|
After |
1x2 =
2 u |
2 u |
|
Fraction of money that Cindy left
= 1 -
23 =
13 Fraction of money that Billy left
= 1 -
13 =
23 The amount of money that Billy and Cindy had in the end is the same. Make the amount of money that Billy and Cindy had in the end the same. LCM of 1 and 2 is 2.
Amount that Cindy had more than Billy at first
= 6 u - 3 u
= 3 u
3 u = 183
1 u = 183 ÷ 3 = 61
Amount that Billy had at first
= 3 u
= 3 x 61
= $183
Answer(s): $183
