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Question

Problem Solving — algebra and arithmetic (GMAT Focus Edition)
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by sukh » Wed Nov 09, 2011 4:05 am
Is the average price of 10 items of which no two cost the same. If each of the cheapest 5 items loses 10% in price while each of the most expensive 5 items gains 10% in price, which of the following is possible about ? I. will decrease II. will not change III. will increase (A) III only (B) I and II only (C) I and III only (D) II and III only (E) I, II, and III
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Source: — Quantitative Reasoning |
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by shankar.ashwin » Wed Nov 09, 2011 4:16 am
Smaller sum loses 10% and a larger sum gains 10%. Therefore gain > loss.

Should be III alone IMO. A IMO
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