Question

Answer the questions based on the information given below. In certain code, X %Y means X is 4m north of Y. X&Y means M is 9m south of Y. X+ Y means X is 4m west of Y. X@ Y means X is 12m east of Y. Statement: R + Q; P + O & L @ N % M; P % Q; R & S What is the shortest distance between N and O? 

A 18m
B 10m
C 15m
D 20m
E None of the above
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