2001 AMC 12 Problems/Problem 3
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Problem
The state income tax where Kristin lives is levied at the rate of 
of the first
$
of annual income plus 
of any amount above $. Kristin
noticed that the state income tax she paid amounted to 
of her
annual income. What was her annual income?
$
$
$
$
$
Solution
Let the income amount be denoted by 
.
We know that 
.
We can now try to solve for :
So the answer is 
See Also
| 2001 AMC 12 (Problems • Resources) | ||
| Preceded by Problem 2 | Followed by Problem 4 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
