Betty's salary is 50% more than Jane's salary. When their salaries are increased by 30%, their combined salaries will be $3250. How much was Betty's salary before the increase?
| |
Betty |
Jane |
Total |
| Before |
3 u |
2 u |
5 u |
| Change |
+ ? |
+ ? |
+ 1.5 u |
| After |
? |
? |
6.5 u
$3250 |
100% + 50% = 150%
BettyJane =
150100 =
32 Combined salaries at first
= 3 u + 2 u
= 5 u
Increase in the combined salaries
= 30% x 5 u
=
30100 x 5 u
= 1.5 u
Combined salaries in the end
= 5 u + 1.5 u
= 6.5 u
6.5 u = 3250
1 u = 3250 ÷ 6.5 = 500
Betty's salary before the increase
= 3 u
= 3 x 500
= $1500
Answer: $1500
