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 ?
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! 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 ?
-----------------
sqrt(210) =~ 14.5, so that's between pages 14 and 15.
--> # of pages = 28
--------------------
It's interesting to mention that the pages are numbered in order.
|
|
|
