Penelope's salary to Rachel's salary is 5 : 9. If Penelope spends
47 of her salary, Rachel will have $4800 more than her. How much salary does Penelope have?
| |
Penelope |
Rachel |
Comparing Penelope
and Rachel at first |
5x7 =
35 u |
9x7 =
63 u |
Before |
7x5 =
35 u |
|
Change |
- 4x5 =
- 20 u |
|
After |
3x5 =
15 u |
63 u |
Comparing Penelope
and Rachel in the end |
|
$4800 more |
Penelope's salary at first is repeated. Make Penelope's salary at first the same. LCM of 5 and 7 is 35.
Amount that Rachel will have more than Penelope in the end
= 63 u - 15 u
= 48 u
48 u = 4800
1 u = 4800 ÷ 48 = 100
Penelope's salary
= 35 u
= 35 x 100
= $3500
Answer(s): $3500
