Gillian's salary is 40% less than Pamela's salary. When their salaries are increased by 70%, their combined salaries will be $5712. How much was Pamela's salary before the increase?
| |
Gillian |
Pamela |
Total |
| Before |
3 u |
5 u |
8 u |
| Change |
+ ? |
+ ? |
+ 5.6 u |
| After |
? |
? |
13.6 u
$$(n11040 |
100% - 40% = 60%
GillianPamela =
60100 =
35 Combined salaries at first
= 3 u + 5 u
= 8 u
Increase in the combined salaries
= 70% x 8 u
=
70100 x 8 u
= 5.6 u
Combined salaries in the end
= 8 u + 5.6 u
= 13.6 u
13.6 u = 5712
1 u = 5712 ÷ 13.6 = 420
Pamela's salary before the increase
= 5 u
= 5 x 420
= $2100
Answer: $2100
