perplexus.info :: Just Math : Three numbers

Three numbers (Posted on 2003-11-17)

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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re(3): another solution

| Comment 14 of 22 |

(In reply to re(2): another solution by Charlie)

As mentioned earlier, at the maximum, y and z are both = 1/3. Is there another solution?

Posted by SilverKnight on 2003-11-18 21:02:31

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