Ivory's salary to Winnie's salary is 7 : 9. If Ivory spends
34 of her salary, she will have $1740 less than Winnie. How much salary does Winnie have?
| |
Ivory |
Winnie |
Comparing Ivory
and Winnie at first |
7x4 =
28 u |
9x4 =
36 u |
Before |
4x7 =
28 u |
|
Change |
- 3x7 =
- 21 u |
|
After |
1x7 =
7 u |
36 u |
Comparing Ivory
and Winnie in the end |
|
$1740 less |
Ivory's salary at first is repeated. Make Ivory's salary at first the same. LCM of 7 and 4 is 28.
Amount that Ivory will have less than Winnie in the end
= 36 u - 7 u
= 29 u
29 u = 1740
1 u = 1740 ÷ 29 = 60
Winnie's salary
= 36 u
= 36 x 60
= $2160
Answer(s): $2160
