Nora and Tina went shopping with a total of $312. After Nora spent
45 of her money and Tina spent $24, the ratio of Tina's money became 4 times as much as Nora's money. Find the ratio of Nora's money to Tina's money at first.
| |
Nora |
Tina |
| Before |
5 u |
4 u + 24 |
| Change |
- 4 u |
- 24 |
| After |
1 u |
|
| Comparing between Nora and Tina in the end |
1 u |
4 u |
Total amount that Nora and Tina had at first
= 5 u + 4 u + 24
= 9 u + 24
9 u + 24 = 312
5 u + 4 u = 312 - 24
9 u = 288
1 u = 288 ÷ 9 = 32
Amount that Nora had at first
= 5 u
= 5 x 32
= $160
Amount that Tina had at first
= 312 - 160
= $152
At first
Nora : Tina
160 : 152
20 : 19
Answer(s): 20 : 19
