GMAT Quantitative Reasoning Practice Test 5

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Question : 53 of 100
 
Marks: +1, -0
  Type   Past percent
of sales volume
  Mystery  50
  Young adult  16
  General fiction  15
  Romance  12
  General nonfiction  7
A certain bookstore reduced its inventory by offering percent discounts that were inversely proportional to the past percent of sales volume of the book type. The figure above shows these past percent of sales volumes for 5 book types. If thepercent discount on Romance books was 15%, which of the following is closest to the percent discount on Mystery books?
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