Question 306716
In the exact middle of a certain book, when the page numbers on the facing pages , x and x+1, are multiplied together , the product is 210. if all of the pages are numbered  in order, How many numbered pages  are in the book ?
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sqrt(210) =~ 14.5, so that's between pages 14 and 15.
--> # of pages = 28
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It's interesting to mention that the pages are numbered in order.