Hilda's salary is 70% less than Anna's salary. When their salaries are decreased by 40%, their combined salaries will be $3744. How much was Anna's salary before the decrease?
| |
Hilda |
Anna |
Total |
| Before |
3 u |
10 u |
13 u |
| Change |
- ? |
- ? |
- 5.2 u |
| After |
? |
? |
7.8 u
$3744 |
100% - 70% = 30%
HildaAnna =
30100 =
310 Combined salaries at first
= 3 u + 10 u
= 13 u
Decrease in the combined salaries
= 40% x 13 u
=
40100 x 13 u
= 5.2 u
Combined salaries in the end
= 13 u + 5.2 u
= 7.8 u
7.8 u = 3744
1 u = 3744 ÷ 7.8 = 480
Anna's salary before the decrease
= 10 u
= 10 x 480
= $4800
Answer: $4800
