Fiona's salary to Olivia's salary is 3 : 7. If Fiona spends
56 of her salary, Olivia will have $130 more than her. How much salary does Fiona have?
| |
Fiona |
Olivia |
Comparing Fiona
and Olivia at first |
3x2 =
6 u |
7x2 =
14 u |
Before |
6x1 =
6 u |
|
Change |
- 5x1 =
- 5 u |
|
After |
1x1 =
1 u |
14 u |
Comparing Fiona
and Olivia in the end |
|
$130 more |
Fiona's salary at first is repeated. Make Fiona's salary at first the same. LCM of 3 and 6 is 6.
Amount that Olivia will have more than Fiona in the end
= 14 u - 1 u
= 13 u
13 u = 130
1 u = 130 ÷ 13 = 10
Fiona's salary
= 6 u
= 6 x 10
= $60
Answer(s): $60
