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Three numbers (Posted on 2003-11-17) Difficulty: 3 of 5
If x, y and z are real numbers such that: x + y + z = 5 and xy + yz + zx = 3, what is the largest value that x can have ?

No Solution Yet Submitted by Ravi Raja    
Rating: 3.7500 (4 votes)

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Question re: solution | Comment 5 of 21 |
(In reply to solution by Charlie)

Charlie,

I may VERY WELL need sleep (I'm kinda tired), but doesn't x=5 require imaginary numbers (when the problem says that x, y, and z are all real).

--- SK
  Posted by SilverKnight on 2003-11-17 15:59:29

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