Rachel's salary to Jen's salary is 3 : 7. If Rachel spends
34 of her salary, she will have $2500 less than Jen. How much salary does Jen have?
| |
Rachel |
Jen |
Comparing Rachel
and Jen at first |
3x4 =
12 u |
7x4 =
28 u |
Before |
4x3 =
12 u |
|
Change |
- 3x3 =
- 9 u |
|
After |
1x3 =
3 u |
28 u |
Comparing Rachel
and Jen in the end |
|
$2500 less |
Rachel's salary at first is repeated. Make Rachel's salary at first the same. LCM of 3 and 4 is 12.
Amount that Rachel will have less than Jen in the end
= 28 u - 3 u
= 25 u
25 u = 2500
1 u = 2500 ÷ 25 = 100
Jen's salary
= 28 u
= 28 x 100
= $2800
Answer(s): $2800
