Abi's salary to Xylia's salary is 5 : 9. If Abi spends
47 of her salary, Xylia will have $1920 more than her. How much salary does Abi have?
| |
Abi |
Xylia |
Comparing Abi
and Xylia at first |
5x7 =
35 u |
9x7 =
63 u |
Before |
7x5 =
35 u |
|
Change |
- 4x5 =
- 20 u |
|
After |
3x5 =
15 u |
63 u |
Comparing Abi
and Xylia in the end |
|
$1920 more |
Abi's salary at first is repeated. Make Abi's salary at first the same. LCM of 5 and 7 is 35.
Amount that Xylia will have more than Abi in the end
= 63 u - 15 u
= 48 u
48 u = 1920
1 u = 1920 ÷ 48 = 40
Abi's salary
= 35 u
= 35 x 40
= $1400
Answer(s): $1400
