Hazel's salary to Kathy's salary is 5 : 9. If Hazel spends
37 of her salary, Kathy will have $3870 more than her. How much salary does Hazel have?
| |
Hazel |
Kathy |
Comparing Hazel
and Kathy at first |
5x7 =
35 u |
9x7 =
63 u |
Before |
7x5 =
35 u |
|
Change |
- 3x5 =
- 15 u |
|
After |
4x5 =
20 u |
63 u |
Comparing Hazel
and Kathy in the end |
|
$3870 more |
Hazel's salary at first is repeated. Make Hazel's salary at first the same. LCM of 5 and 7 is 35.
Amount that Kathy will have more than Hazel in the end
= 63 u - 20 u
= 43 u
43 u = 3870
1 u = 3870 ÷ 43 = 90
Hazel's salary
= 35 u
= 35 x 90
= $3150
Answer(s): $3150
