Study the following information carefully and answer the question given below. A certain number of persons sit in a row facing north. Eight persons si...

Study the following information carefully and answer the question given below.

A certain number of persons sit in a row facing north. Eight persons sit between P and M, who is immediately to the left of R. A sits 2nd to the left of M. One person sits between M and Z. The number of persons between P and W is three times the number of persons between A and Z. D is the only neighbor of P. The number of persons to the right of Z is two less than the number of persons to the left of Z. O sits third to the left of A.

What is the number of persons sitting between A and P twice as much as the number of persons sitting between which two persons?