What is the largest possible median for the five number set $\{x, 2x, 3, 2, 5\}$ if $x$ can be any integer?
\(2, 3, 5, x, 2x\) creates the largest median no matter what. \(x\) can be any integer you want it to be, but the median will always be \(5\)
Correct! Notice that the median must always be the middle numberm and we can already see that 2 and 3 are less than 5. So, 5 will be the middle number, no matter what x and 2x are.
Largest possible median is 5!
Assuming that x is a positive ineger
Let x be some "large positive integer "
The ordering of the numbers is
2, 3 , 5 , x , 2x
And the median is 5.....just as cryptoaops found !!!
Note that not just ANY integer will produce this....for example...if x = 1 we have
1 2 2 3 5 and the median is 2
And if x = 2 we have 2 2 3 4 5 and the median = 3
If x = 3 we have 2 3 3 5 6 median = 3
If x = 4 we have 2 3 4 5 8 median = 4
In fact x must be an integer greater than 4 to have a median of 5
No problem!
Also, I wanted to notify you that there should be no cheating on Alcumus or Homework as it is not allowed on AoPS.