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February 19th, 2011, 09:09 AM  #1 
Senior Member Joined: Jan 2009 Posts: 344 Thanks: 3  2 Problems
[1] Median of 10 numbers is shifted from 6 to 8 when 15 is added. What will the median be if 15 is replaced with 7? [2] 
February 19th, 2011, 02:12 PM  #2 
Global Moderator Joined: Nov 2009 From: Northwest Arkansas Posts: 2,766 Thanks: 4  Re: 2 Problems
Is (2) not simply asking you to calculate the function value at x = 4 and at x = 2 and find the difference?? You could use synthetic division if you prefer... 
February 19th, 2011, 05:01 PM  #3  
Senior Member Joined: Jan 2009 Posts: 344 Thanks: 3  Re: 2 Problems Quote:
I think I was frustrated with these Olympiad problems that I didn't even care to try some of them.  
February 19th, 2011, 05:07 PM  #4 
Global Moderator Joined: Nov 2009 From: Northwest Arkansas Posts: 2,766 Thanks: 4  Re: 2 Problems
For (1), the only possible options are 6, 7, or 8


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