Fanny's salary to Winnie's salary is 4 : 7. If Fanny spends
35 of her salary, she will have $3240 less than Winnie. How much salary does Winnie have?
| |
Fanny |
Winnie |
Comparing Fanny
and Winnie at first |
4x5 =
20 u |
7x5 =
35 u |
Before |
5x4 =
20 u |
|
Change |
- 3x4 =
- 12 u |
|
After |
2x4 =
8 u |
35 u |
Comparing Fanny
and Winnie in the end |
|
$3240 less |
Fanny's salary at first is repeated. Make Fanny's salary at first the same. LCM of 4 and 5 is 20.
Amount that Fanny will have less than Winnie in the end
= 35 u - 8 u
= 27 u
27 u = 3240
1 u = 3240 ÷ 27 = 120
Winnie's salary
= 35 u
= 35 x 120
= $4200
Answer(s): $4200
