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Only One Operator (Posted on 2007-08-26) Difficulty: 4 of 5
1) Choose any 6 numbers from first 7 natural numbers, express the other number using these 6 numbers exactly once and only one operator. This should work for any choice of 6 numbers. What is the operator that has to be chosen?

2) Replace 6 by (n-1) and 7 by n in (1), find for which n, this logic works. If the chosen numbers have to be used at least once, find the other n values for which this logic works.

See The Solution Submitted by Praneeth    
Rating: 4.3333 (3 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Hints/TipsPart 1 SolutionBrian Smith2007-08-28 10:43:08
No SubjectPraneeth2007-08-27 02:49:06
re(3): Part (1)Praneeth2007-08-27 02:31:58
re(2): Part (1)Penny2007-08-27 02:27:40
Hints/Tipsre: Part (1)Praneeth2007-08-27 02:03:12
re: Part (1)Penny2007-08-26 21:16:56
Part (1)Penny2007-08-26 17:15:41
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