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.

(In reply to re(2): Part (1) by Penny)

Ofcourse its a mathematical logical operator in programming, but u wont use
in mathematics. I mentioned it clearly in the problem "whats the operator
to be chosen?" and that too I didnt use exactly once after "only one operator".

Edited on August 27, 2007, 2:33 am

Edited on August 28, 2007, 1:36 am

Posted by Praneeth on 2007-08-27 02:31:58