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Three Sequences (Posted on 2004-01-06) Difficulty: 3 of 5
A set of six positive integers contains an arithmetic sequence of four terms, a geometric sequence of four terms, and a harmonic sequence of four terms. What are the numbers in the set when the largest member of the set is a minimum?

Note: A harmonic sequence is a sequence whose reciprocals form an arithmetic sequence. ex: ({10, 12, 15, 20} is harmonic since {1/10, 1/12, 1/15, 1/20} is arithmetic)

See The Solution Submitted by Brian Smith    
Rating: 3.0000 (2 votes)

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  Subject Author Date
SolutionPuzzle Solution With ExplanationK Sengupta2007-05-25 11:32:51
AnswerK Sengupta2007-05-25 11:30:56
re: questionCharlie2004-01-07 09:13:53
questionVictor Zapana2004-01-06 21:51:02
re(2): SolutionGamer2004-01-06 16:07:56
re: Solutionstan2004-01-06 15:15:01
Some ThoughtsSolutionstan2004-01-06 14:55:14
Hints/Tipsre: solutionSilverKnight2004-01-06 14:09:13
SolutionsolutionSilverKnight2004-01-06 13:57:02
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