Shannon's salary to Anna's salary is 4 : 7. If Shannon spends
25 of her salary, Anna will have $2760 more than her. How much salary does Shannon have?
| |
Shannon |
Anna |
Comparing Shannon
and Anna at first |
4x5 =
20 u |
7x5 =
35 u |
Before |
5x4 =
20 u |
|
Change |
- 2x4 =
- 8 u |
|
After |
3x4 =
12 u |
35 u |
Comparing Shannon
and Anna in the end |
|
$2760 more |
Shannon's salary at first is repeated. Make Shannon's salary at first the same. LCM of 4 and 5 is 20.
Amount that Anna will have more than Shannon in the end
= 35 u - 12 u
= 23 u
23 u = 2760
1 u = 2760 ÷ 23 = 120
Shannon's salary
= 20 u
= 20 x 120
= $2400
Answer(s): $2400
