problem from official guide.

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by mschling52 » Wed Oct 03, 2007 1:09 pm
I think the answer is E.

Start by finding the average of 100 and 1%of annual income (I). This is equal to

(100+.01I)/2

Then, add 2% of annual income to this number to get the total tax due. We now have

.02I + (100+.01I)/2
.02I + 50 + .005I
50 + .025I

Then, since the decimal .025 is equal to 1/40, the bolded expression above is the same as answer choice E.
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