Sabrina's salary is 50% less than Betty's salary. When their salaries are increased by 30%, their combined salaries will be $1950. How much was Betty's salary before the increase?
| |
Sabrina |
Betty |
Total |
| Before |
1 u |
2 u |
3 u |
| Change |
+ ? |
+ ? |
+ 0.9 u |
| After |
? |
? |
3.9 u
$$(n11040 |
100% - 50% = 50%
SabrinaBetty =
50100 =
12 Combined salaries at first
= 1 u + 2 u
= 3 u
Increase in the combined salaries
= 30% x 3 u
=
30100 x 3 u
= 0.9 u
Combined salaries in the end
= 3 u + 0.9 u
= 3.9 u
3.9 u = 1950
1 u = 1950 ÷ 3.9 = 500
Betty's salary before the increase
= 2 u
= 2 x 500
= $1000
Answer: $1000
