Marion's salary is 40% more than Hazel's salary. When their salaries are increased by 10%, their combined salaries will be $5148. How much was Marion's salary before the increase?
| |
Marion |
Hazel |
Total |
| Before |
7 u |
5 u |
12 u |
| Change |
+ ? |
+ ? |
+ 1.2 u |
| After |
? |
? |
13.2 u
$5148 |
100% + 40% = 140%
MarionHazel =
140100 =
75 Combined salaries at first
= 7 u + 5 u
= 12 u
Increase in the combined salaries
= 10% x 12 u
=
10100 x 12 u
= 1.2 u
Combined salaries in the end
= 12 u + 1.2 u
= 13.2 u
13.2 u = 5148
1 u = 5148 ÷ 13.2 = 390
Marion's salary before the increase
= 7 u
= 7 x 390
= $2730
Answer: $2730
