Risa's salary to Shiyun's salary is 5 : 8. If Risa spends
57 of her salary, she will have $2300 less than Shiyun. How much salary does Shiyun have?
| |
Risa |
Shiyun |
Comparing Risa
and Shiyun at first |
5x7 =
35 u |
8x7 =
56 u |
Before |
7x5 =
35 u |
|
Change |
- 5x5 =
- 25 u |
|
After |
2x5 =
10 u |
56 u |
Comparing Risa
and Shiyun in the end |
|
$2300 less |
Risa's salary at first is repeated. Make Risa's salary at first the same. LCM of 5 and 7 is 35.
Amount that Risa will have less than Shiyun in the end
= 56 u - 10 u
= 46 u
46 u = 2300
1 u = 2300 ÷ 46 = 50
Shiyun's salary
= 56 u
= 56 x 50
= $2800
Answer(s): $2800
