May 1st, 2014, 12:30 PM  #1 
Senior Member Joined: Nov 2013 Posts: 434 Thanks: 8  floor
3 < floor(x+1) <5

May 1st, 2014, 12:55 PM  #2 
Math Team Joined: Dec 2013 From: Colombia Posts: 7,696 Thanks: 2681 Math Focus: Mainly analysis and algebra 
I think you can have a go at that one and then give your working if you get stuck.

May 1st, 2014, 10:51 PM  #3 
Senior Member Joined: Apr 2013 Posts: 425 Thanks: 24  
May 1st, 2014, 11:22 PM  #4 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms  

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