Usha's salary is 10% more than Joelle's salary. When their salaries are decreased by 40%, their combined salaries will be $3024. How much was Usha's salary before the decrease?
| |
Usha |
Joelle |
Total |
| Before |
11 u |
10 u |
21 u |
| Change |
- ? |
- ? |
- 8.4 u |
| After |
? |
? |
12.6 u
$3024 |
100% + 10% = 110%
UshaJoelle =
110100 =
1110 Combined salaries at first
= 11 u + 10 u
= 21 u
Decrease in the combined salaries
= 40% x 21 u
=
40100 x 21 u
= 8.4 u
Combined salaries in the end
= 21 u + 8.4 u
= 12.6 u
12.6 u = 3024
1 u = 3024 ÷ 12.6 = 240
Usha's salary before the decrease
= 11 u
= 11 x 240
= $2640
Answer: $2640
