Mary's salary is 40% less than Cathy's salary. When their salaries are increased by 60%, their combined salaries will be $5504. How much was Cathy's salary before the increase?
| |
Mary |
Cathy |
Total |
| Before |
3 u |
5 u |
8 u |
| Change |
+ ? |
+ ? |
+ 4.8 u |
| After |
? |
? |
12.8 u
$$(n11040 |
100% - 40% = 60%
MaryCathy =
60100 =
35 Combined salaries at first
= 3 u + 5 u
= 8 u
Increase in the combined salaries
= 60% x 8 u
=
60100 x 8 u
= 4.8 u
Combined salaries in the end
= 8 u + 4.8 u
= 12.8 u
12.8 u = 5504
1 u = 5504 ÷ 12.8 = 430
Cathy's salary before the increase
= 5 u
= 5 x 430
= $2150
Answer: $2150
