Preference

K, L, M, N, O and P were the finalist in a spelling contest. There were exactly twenty words to be spelled. Each of the contestants attempted to spell all twenty words. For each of the twenty words a contestant spelled correctly, the contestant obtained one point. For each word a contestant spelled incorrectly, one point was deducted from contestant’s score. (It was thus possible for a contestant to have a negative final score)

No two contestants obtained the same final score.

K obtained a higher score than L did and a lower score than M did.

P obtained a higher score than K did and a lower score than O did.

N obtained a higher score than M did.

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