Fanny's salary to Emily's salary is 5 : 7. If Fanny spends
27 of her salary, Emily will have $720 more than her. How much salary does Fanny have?
| |
Fanny |
Emily |
Comparing Fanny
and Emily at first |
5x7 =
35 u |
7x7 =
49 u |
Before |
7x5 =
35 u |
|
Change |
- 2x5 =
- 10 u |
|
After |
5x5 =
25 u |
49 u |
Comparing Fanny
and Emily in the end |
|
$720 more |
Fanny's salary at first is repeated. Make Fanny's salary at first the same. LCM of 5 and 7 is 35.
Amount that Emily will have more than Fanny in the end
= 49 u - 25 u
= 24 u
24 u = 720
1 u = 720 ÷ 24 = 30
Fanny's salary
= 35 u
= 35 x 30
= $1050
Answer(s): $1050
