Zara and Sarah went shopping with a total of $608. After Zara spent
56 of her money and Sarah spent $48, the ratio of Sarah's money became 4 times as much as Zara's money. Find the ratio of Zara's money to Sarah's money at first.
| |
Zara |
Sarah |
| Before |
6 u |
4 u + 48 |
| Change |
- 5 u |
- 48 |
| After |
1 u |
|
| Comparing between Zara and Sarah in the end |
1 u |
4 u |
Total amount that Zara and Sarah had at first
= 6 u + 4 u + 48
= 10 u + 48
10 u + 48 = 608
6 u + 5 u = 608 - 48
10 u = 560
1 u = 560 ÷ 10 = 56
Amount that Zara had at first
= 6 u
= 6 x 56
= $336
Amount that Sarah had at first
= 608 - 336
= $272
At first
Zara : Sarah
336 : 272
21 : 17
Answer(s): 21 : 17
