Gem's salary to Sarah's salary is 2 : 9. If Gem spends
25 of her salary, she will have $3510 less than Sarah. How much salary does Sarah have?
| |
Gem |
Sarah |
Comparing Gem
and Sarah at first |
2x5 =
10 u |
9x5 =
45 u |
Before |
5x2 =
10 u |
|
Change |
- 2x2 =
- 4 u |
|
After |
3x2 =
6 u |
45 u |
Comparing Gem
and Sarah in the end |
|
$3510 less |
Gem's salary at first is repeated. Make Gem's salary at first the same. LCM of 2 and 5 is 10.
Amount that Gem will have less than Sarah in the end
= 45 u - 6 u
= 39 u
39 u = 3510
1 u = 3510 ÷ 39 = 90
Sarah's salary
= 45 u
= 45 x 90
= $4050
Answer(s): $4050
