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October 11th, 2012, 02:21 AM  #1 
Newbie Joined: Oct 2012 Posts: 1 Thanks: 0  "Fill in the blank space" in the square
Can someone please help me with these two IQ questions. I am not sure about the first row so I have given you two different first rows.[attachment=1:3vl3hl4b]H.jpg[/attachment:3vl3hl4b][attachment=0:3vl3hl4b]2.jpg[/attachment:3vl3hl4b] Thank you! 
October 11th, 2012, 05:13 AM  #2 
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  Re: "Fill in the blank space" in the square
Of course there are infinitely many solutions... For the first one, the most natural to me is to assume that each sequence going down is geometric, yielding 48^2/8 and 1^2/1. For the second, perhaps the second difference is the constant 1, yielding 48 + (48  + 1 and 1 + (1  1) + 1. 
October 11th, 2012, 07:47 AM  #3 
Math Team Joined: Sep 2007 Posts: 2,409 Thanks: 6  Re: "Fill in the blank space" in the square
I would have said that, in the first column, each number is 2 times the previous number. 48 is 6 times 8 so I would multiply by 6: 288. In the third column the obvious answer is "1"

October 11th, 2012, 10:40 AM  #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  Re: "Fill in the blank space" in the square Quote:
 

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