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APMOPS 2016 Question 26

APMOPS · APMOPS 2016

Question 26

A computer programme arranges all six letter words formed from the letters A, P, M, O, P, S in alphabetical order, resulting in the following sequence: AMOPPS, AMOPSP, AMOSPP, AMPOPS, ..., SPPMOA, SPPOAM, SPPOMA. Find the position of POAMSP.