Lucy's salary to Hilda's salary is 4 : 9. If Lucy spends
37 of her salary, Hilda will have $3760 more than her. How much salary does Lucy have?
| |
Lucy |
Hilda |
Comparing Lucy
and Hilda at first |
4x7 =
28 u |
9x7 =
63 u |
Before |
7x4 =
28 u |
|
Change |
- 3x4 =
- 12 u |
|
After |
4x4 =
16 u |
63 u |
Comparing Lucy
and Hilda in the end |
|
$3760 more |
Lucy's salary at first is repeated. Make Lucy's salary at first the same. LCM of 4 and 7 is 28.
Amount that Hilda will have more than Lucy in the end
= 63 u - 16 u
= 47 u
47 u = 3760
1 u = 3760 ÷ 47 = 80
Lucy's salary
= 28 u
= 28 x 80
= $2240
Answer(s): $2240
