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There are 100 people in a room. Each one them can eat 4 pies in total. The maximum amount of pies that can be eaten is 400 pies. If 172 pies were eaten, what is the average pie eaten by per person?

I have trouble coming up with the correct algorithm to solve this problem.

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    $\begingroup$ $\frac{172}{100}$? Does it have anything to do with the pie eating capacity of the players? $\endgroup$ – zoli Mar 12 '17 at 8:21
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Simply 172/100=1.72 pies per person on average. But may be the wording of the question is not clear enough and there is a deeper problem here that I don't see.

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