Betty and Kylie went shopping with a total of $444. After Betty spent
34 of her money and Kylie spent $87, the ratio of Kylie's money became 3 times as much as Betty's money. Find the ratio of Betty's money to Kylie's money at first.
| |
Betty |
Kylie |
| Before |
4 u |
3 u + 87 |
| Change |
- 3 u |
- 87 |
| After |
1 u |
|
| Comparing between Betty and Kylie in the end |
1 u |
3 u |
Total amount that Betty and Kylie had at first
= 4 u + 3 u + 87
= 7 u + 87
7 u + 87 = 444
4 u + 3 u = 444 - 87
7 u = 357
1 u = 357 ÷ 7 = 51
Amount that Betty had at first
= 4 u
= 4 x 51
= $204
Amount that Kylie had at first
= 444 - 204
= $240
At first
Betty : Kylie
204 : 240
17 : 20
Answer(s): 17 : 20
