Abi's salary to Julie's salary is 4 : 7. If Abi spends
35 of her salary, Julie will have $540 more than her. How much salary does Abi have?
| |
Abi |
Julie |
Comparing Abi
and Julie at first |
4x5 =
20 u |
7x5 =
35 u |
Before |
5x4 =
20 u |
|
Change |
- 3x4 =
- 12 u |
|
After |
2x4 =
8 u |
35 u |
Comparing Abi
and Julie in the end |
|
$540 more |
Abi's salary at first is repeated. Make Abi's salary at first the same. LCM of 4 and 5 is 20.
Amount that Julie will have more than Abi in the end
= 35 u - 8 u
= 27 u
27 u = 540
1 u = 540 ÷ 27 = 20
Abi's salary
= 20 u
= 20 x 20
= $400
Answer(s): $400
