Esther's salary is 30% less than Gwen's salary. When their salaries are decreased by 20%, their combined salaries will be $5576. How much was Gwen's salary before the decrease?
| |
Esther |
Gwen |
Total |
| Before |
7 u |
10 u |
17 u |
| Change |
- ? |
- ? |
- 3.4 u |
| After |
? |
? |
13.6 u
$5576 |
100% - 30% = 70%
EstherGwen =
70100 =
710 Combined salaries at first
= 7 u + 10 u
= 17 u
Decrease in the combined salaries
= 20% x 17 u
=
20100 x 17 u
= 3.4 u
Combined salaries in the end
= 17 u + 3.4 u
= 13.6 u
13.6 u = 5576
1 u = 5576 ÷ 13.6 = 410
Gwen's salary before the decrease
= 10 u
= 10 x 410
= $4100
Answer: $4100
