Esther's salary to Eva's salary is 2 : 7. If Esther spends
35 of her salary, Eva will have $620 more than her. How much salary does Esther have?
| |
Esther |
Eva |
Comparing Esther
and Eva at first |
2x5 =
10 u |
7x5 =
35 u |
Before |
5x2 =
10 u |
|
Change |
- 3x2 =
- 6 u |
|
After |
2x2 =
4 u |
35 u |
Comparing Esther
and Eva in the end |
|
$620 more |
Esther's salary at first is repeated. Make Esther's salary at first the same. LCM of 2 and 5 is 10.
Amount that Eva will have more than Esther in the end
= 35 u - 4 u
= 31 u
31 u = 620
1 u = 620 ÷ 31 = 20
Esther's salary
= 10 u
= 10 x 20
= $200
Answer(s): $200
