Cindy's salary is 20% less than Tiffany's salary. When their salaries are increased by 10%, their combined salaries will be $3267. How much was Tiffany's salary before the increase?
| |
Cindy |
Tiffany |
Total |
| Before |
4 u |
5 u |
9 u |
| Change |
+ ? |
+ ? |
+ 0.9 u |
| After |
? |
? |
9.9 u
$$(n11040 |
100% - 20% = 80%
CindyTiffany =
80100 =
45 Combined salaries at first
= 4 u + 5 u
= 9 u
Increase in the combined salaries
= 10% x 9 u
=
10100 x 9 u
= 0.9 u
Combined salaries in the end
= 9 u + 0.9 u
= 9.9 u
9.9 u = 3267
1 u = 3267 ÷ 9.9 = 330
Tiffany's salary before the increase
= 5 u
= 5 x 330
= $1650
Answer: $1650
