Cindy and Betty had equal amount of money. Each day, Cindy spent $16 and Betty spent $22. When Cindy had $108 left, Betty had
12 as much money left as Cindy. How much money did the two girls have at first?
| |
Cindy |
Betty |
| Before |
16 u + 108 |
22 u + 54 |
| Change |
- 16 u |
- 22 u |
| After |
$108 |
$54 |
Amount that Betty had left
=
12 x 108
= $54
The amount that Cindy and Betty had at first is the same.
22 u + 54 = 16 u + 108
22 u - 16 u = 108 - 54
6 u = 54
1 u = 54 ÷ 6 = 9
Amount that Cindy had at first
= 16 u + 108
= 16 x 9 + 108
= 144 + 108
= $252
Total amount that both girls had at first
= 2 x 252
= $504
Answer(s): $504
