Marion's salary to Cindy's salary is 4 : 9. If Marion spends
27 of her salary, she will have $2150 less than Cindy. How much salary does Cindy have?
| |
Marion |
Cindy |
Comparing Marion
and Cindy at first |
4x7 =
28 u |
9x7 =
63 u |
Before |
7x4 =
28 u |
|
Change |
- 2x4 =
- 8 u |
|
After |
5x4 =
20 u |
63 u |
Comparing Marion
and Cindy in the end |
|
$2150 less |
Marion's salary at first is repeated. Make Marion's salary at first the same. LCM of 4 and 7 is 28.
Amount that Marion will have less than Cindy in the end
= 63 u - 20 u
= 43 u
43 u = 2150
1 u = 2150 ÷ 43 = 50
Cindy's salary
= 63 u
= 63 x 50
= $3150
Answer(s): $3150
