Ivory's salary is 20% more than Hazel's salary. When their salaries are decreased by 70%, their combined salaries will be $1287. How much was Ivory's salary before the decrease?
| |
Ivory |
Hazel |
Total |
| Before |
6 u |
5 u |
11 u |
| Change |
- ? |
- ? |
- 7.7 u |
| After |
? |
? |
3.3 u
$1287 |
100% + 20% = 120%
IvoryHazel =
120100 =
65 Combined salaries at first
= 6 u + 5 u
= 11 u
Decrease in the combined salaries
= 70% x 11 u
=
70100 x 11 u
= 7.7 u
Combined salaries in the end
= 11 u + 7.7 u
= 3.3 u
3.3 u = 1287
1 u = 1287 ÷ 3.3 = 390
Ivory's salary before the decrease
= 6 u
= 6 x 390
= $2340
Answer: $2340
