Lucy's salary is 20% more than Tammy's salary. When their salaries are decreased by 80%, their combined salaries will be $682. How much was Lucy's salary before the decrease?
| |
Lucy |
Tammy |
Total |
| Before |
6 u |
5 u |
11 u |
| Change |
- ? |
- ? |
- 8.8 u |
| After |
? |
? |
2.2 u
$682 |
100% + 20% = 120%
LucyTammy =
120100 =
65 Combined salaries at first
= 6 u + 5 u
= 11 u
Decrease in the combined salaries
= 80% x 11 u
=
80100 x 11 u
= 8.8 u
Combined salaries in the end
= 11 u + 8.8 u
= 2.2 u
2.2 u = 682
1 u = 682 ÷ 2.2 = 310
Lucy's salary before the decrease
= 6 u
= 6 x 310
= $1860
Answer: $1860
