Jane's salary is 30% more than Irene's salary. When their salaries are increased by 10%, their combined salaries will be $5313. How much was Jane's salary before the increase?
| |
Jane |
Irene |
Total |
| Before |
13 u |
10 u |
23 u |
| Change |
+ ? |
+ ? |
+ 2.3 u |
| After |
? |
? |
25.3 u
$5313 |
100% + 30% = 130%
JaneIrene =
130100 =
1310 Combined salaries at first
= 13 u + 10 u
= 23 u
Increase in the combined salaries
= 10% x 23 u
=
10100 x 23 u
= 2.3 u
Combined salaries in the end
= 23 u + 2.3 u
= 25.3 u
25.3 u = 5313
1 u = 5313 ÷ 25.3 = 210
Jane's salary before the increase
= 13 u
= 13 x 210
= $2730
Answer: $2730
