Zara's salary to Winnie's salary is 4 : 7. If Zara spends
25 of her salary, Winnie will have $230 more than her. How much salary does Zara have?
| |
Zara |
Winnie |
Comparing Zara
and Winnie at first |
4x5 =
20 u |
7x5 =
35 u |
Before |
5x4 =
20 u |
|
Change |
- 2x4 =
- 8 u |
|
After |
3x4 =
12 u |
35 u |
Comparing Zara
and Winnie in the end |
|
$230 more |
Zara's salary at first is repeated. Make Zara's salary at first the same. LCM of 4 and 5 is 20.
Amount that Winnie will have more than Zara in the end
= 35 u - 12 u
= 23 u
23 u = 230
1 u = 230 ÷ 23 = 10
Zara's salary
= 20 u
= 20 x 10
= $200
Answer(s): $200
