Percent Increase
On the Praxis Exam I took some years ago, there was a question that ran something like this:
The parking lot at the college was a square 100 yards on a side. The lot was increased by paving enough land to make a new square with a side that was 400% bigger. The size of the new lot was what percent of the old lot?
a) 400%
b) 800%
c) 1200%
d) 1600%
So ... what's wrong with this question and those answers?
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