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October 8th, 2013, 03:37 PM  #1 
Newbie Joined: Sep 2013 Posts: 4 Thanks: 0  Who Bought What, and Where?
Four people, Alexis, Brad, Charmaine, and Doug, went to a department store together. One bought a watch, one a book, one a pair of shoes, and one a camera. The first, second, third, and fourth floors carry those items, but not necessarily in the order given for the purchases. On the basis of the following clues, determine who bought what on which floor. Explain your reasoning thoroughly. Clue 1: Brad went to the first floor. Clue 2: Watches are sold on the fourth floor. Clue 3: Doug went to the second floor. Clue 4: Alexis bought a book. Clue 5: Brad did not buy a camera. 
October 8th, 2013, 06:42 PM  #2 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 13,804 Thanks: 971  Re: Who Bought What,and Where?
Make a grid. Examples: https://www.google.ca/?gws_rd=cr&ei=WLR ... ic+puzzles 
October 9th, 2013, 03:09 PM  #3 
Global Moderator Joined: Dec 2006 Posts: 20,110 Thanks: 1909 
Let's assume that only the four floors mentioned are to be considered and no two different items (of the items mentioned) are sold on the same floor, then it follows that no two people made their purchase on the same floor. Brad and Doug went to the first floor and second floor respectively, and watches are sold on the fourth floor, so Alexis bought a book on the third floor, and Charmaine bought a watch on the fourth floor. Brad did not buy a camera, so the pair of shoes and camera were purchased by Brad and Doug respectively. 

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