Cathy's salary to Tiffany's salary is 5 : 8. If Cathy spends
56 of her salary, Tiffany will have $2150 more than her. How much salary does Cathy have?
| |
Cathy |
Tiffany |
Comparing Cathy
and Tiffany at first |
5x6 =
30 u |
8x6 =
48 u |
Before |
6x5 =
30 u |
|
Change |
- 5x5 =
- 25 u |
|
After |
1x5 =
5 u |
48 u |
Comparing Cathy
and Tiffany in the end |
|
$2150 more |
Cathy's salary at first is repeated. Make Cathy's salary at first the same. LCM of 5 and 6 is 30.
Amount that Tiffany will have more than Cathy in the end
= 48 u - 5 u
= 43 u
43 u = 2150
1 u = 2150 ÷ 43 = 50
Cathy's salary
= 30 u
= 30 x 50
= $1500
Answer(s): $1500
