Zero a Million Puzzle

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1 Response

  1. Gagan says:

    a) if there are k people in total , the sum of all their choices is most likely to be N*k/2
    so the remaining k-1 ppl sum is most likely to be N*(k-1)/2
    we choose our number x st (N*(k-1) + x) * 2/(3*k) = x
    thus x = (k-1)*N / (3*k – 2)

    sounds reasonable ?