Pamela and Tina went shopping with a total of $380. After Pamela spent
34 of her money and Tina spent $100, the ratio of Tina's money became 4 times as much as Pamela's money. Find the ratio of Pamela's money to Tina's money at first.
| |
Pamela |
Tina |
| Before |
4 u |
4 u + 100 |
| Change |
- 3 u |
- 100 |
| After |
1 u |
|
| Comparing between Pamela and Tina in the end |
1 u |
4 u |
Total amount that Pamela and Tina had at first
= 4 u + 4 u + 100
= 8 u + 100
8 u + 100 = 380
4 u + 3 u = 380 - 100
8 u = 280
1 u = 280 ÷ 8 = 35
Amount that Pamela had at first
= 4 u
= 4 x 35
= $140
Amount that Tina had at first
= 380 - 140
= $240
At first
Pamela : Tina
140 : 240
7 : 12
Answer(s): 7 : 12
