Jane's salary is 10% less than Jen's salary. When their salaries are increased by 20%, their combined salaries will be $9576. How much was Jen's salary before the increase?
| |
Jane |
Jen |
Total |
| Before |
9 u |
10 u |
19 u |
| Change |
+ ? |
+ ? |
+ 3.8 u |
| After |
? |
? |
22.8 u
$$(n11040 |
100% - 10% = 90%
JaneJen =
90100 =
910 Combined salaries at first
= 9 u + 10 u
= 19 u
Increase in the combined salaries
= 20% x 19 u
=
20100 x 19 u
= 3.8 u
Combined salaries in the end
= 19 u + 3.8 u
= 22.8 u
22.8 u = 9576
1 u = 9576 ÷ 22.8 = 420
Jen's salary before the increase
= 10 u
= 10 x 420
= $4200
Answer: $4200
