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Rational Value Validation (Posted on 2016-03-20) Difficulty: 3 of 5
The 97 rational numbers 49/1, 49/2, 49/3, ..., 49/97 are written on a blackboard.
Two of the above numbers X and Y are chosen and replaced by X*Y-X-Y+1.
The procedure is repeated until a single number Z(say) remains on the board.

Determine the possible values of Z.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Some Thoughtsre: solution for 4 elements onlyCharlie2016-03-23 14:52:58
Some Thoughtssolution for 4 elements onlyCharlie2016-03-22 08:12:50
re(3): cardinality of solution setCharlie2016-03-21 17:02:49
re(2): cardinality of solution setBrian Smith2016-03-21 11:38:39
re: cardinality of solution setCharlie2016-03-21 10:14:55
re: cardinality of solution setJer2016-03-21 09:54:59
cardinality of solution setCharlie2016-03-21 08:00:01
re(2): Two special resultsCharlie2016-03-20 22:49:12
Questionre: Two special resultsAdy TZIDON2016-03-20 11:44:47
Hints/TipsTwo special resultsCharlie2016-03-20 10:26:59
Some Thoughtsa sampling of 500 at randomCharlie2016-03-20 10:14:35
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