Question
If K and M interchanged their positions then how many
seats are there between M and R? Study the following information carefully and answer the below questions. Certain numbers of people are sitting in a row facing north. X and N are immediate neighbors of each other. Only two persons sit between X and R. R sits fifth to the right of Z, who is not an immediate neighbor of N. There are no seats to the right of Q. S sits third to the left of Z and is third from one of the extreme ends of the line. V sits second to the right of K and is an immediate neighbor of Z. M sits exactly between R and V. More than three persons sit between M and N, who sits third to the left of Q.Solution
X and N are immediate neighbors of each other. Only two persons sit between X and R. R sits fifth to the right of Z, who is not an immediate neighbor of N. 
S sits third to the left of Z and is third from one of the extreme ends of the line. 
V sits second to the right of K and is an immediate neighbor of Z. M sits exactly between R and V. Here Case 1 gets eliminated. 
More than three persons sit between M and N, who sits third to the left of Q. There are no seats to the right of Q. Here, Case 3 gets eliminated and hence the final arrangement is, 
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