Lynn and Barbara went shopping with a total of $768. After Lynn spent
34 of her money and Barbara spent $64, the ratio of Barbara's money became 4 times as much as Lynn's money. Find the ratio of Lynn's money to Barbara's money at first.
| |
Lynn |
Barbara |
| Before |
4 u |
4 u + 64 |
| Change |
- 3 u |
- 64 |
| After |
1 u |
|
| Comparing between Lynn and Barbara in the end |
1 u |
4 u |
Total amount that Lynn and Barbara had at first
= 4 u + 4 u + 64
= 8 u + 64
8 u + 64 = 768
4 u + 3 u = 768 - 64
8 u = 704
1 u = 704 ÷ 8 = 88
Amount that Lynn had at first
= 4 u
= 4 x 88
= $352
Amount that Barbara had at first
= 768 - 352
= $416
At first
Lynn : Barbara
352 : 416
11 : 13
Answer(s): 11 : 13
