Vanessa's salary to Gillian's salary is 3 : 8. If Vanessa spends
25 of her salary, Gillian will have $620 more than her. How much salary does Vanessa have?
| |
Vanessa |
Gillian |
Comparing Vanessa
and Gillian at first |
3x5 =
15 u |
8x5 =
40 u |
Before |
5x3 =
15 u |
|
Change |
- 2x3 =
- 6 u |
|
After |
3x3 =
9 u |
40 u |
Comparing Vanessa
and Gillian in the end |
|
$620 more |
Vanessa's salary at first is repeated. Make Vanessa's salary at first the same. LCM of 3 and 5 is 15.
Amount that Gillian will have more than Vanessa in the end
= 40 u - 9 u
= 31 u
31 u = 620
1 u = 620 ÷ 31 = 20
Vanessa's salary
= 15 u
= 15 x 20
= $300
Answer(s): $300
