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My favorite numbers V (Posted on 2010-06-09) Difficulty: 3 of 5
Determine all possible quadruplet(s) (A,B,C,D) of positive integers, with A ≤ C, that satisfy this system of equations:

A*(B-1)= C+D, and:

C*(D-1) = A+B

Prove that these are the only quadruplet(s) that exist.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
satisfactioned bottemiller2010-06-09 15:04:50
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