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, 
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдореЗрдВ рд╕реЗ рдЕрд╕рдВрдЧрдд рд╡рд┐рд▓реЛрдорд╛рд░реНрдереА рд╢рдмреНрдж-рдпреБрдЧреНрдо рд╣реИ :
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рд╢рдмреНрджреЛрдВ рдореЗрдВ рд╕реЗ 'рдЖрднреНрдпрдВрддрд░' рдХрд╛ рд╡рд┐рд▓реЛрдо рдмрддрд╛рдЗрдП :
рдкреНрд░рдорд╛рдгрд┐рдХрд░рдгтАЩ рд╢рдмреНрдж рдХрд╛ рдЕрд░реНрде рдХрд┐рд╕ рдЕрдВрдЧреНрд░реЗрдЬреА рдкрд╛рд░рд┐рднрд╛рд╖рд┐рдХ рд╢рдмреНрдж...
' рдПрдХ рдореБрдБрд╣ рджреЛ рдмрд╛рдд ' рд▓реЛрдХреЛрдХреНрддрд┐ рдХрд╛ рд╕рд╣реА рдЕрд░реНрде рдХреНрдпрд╛ рд╣реИ ?
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдкреНрд░рд╢реНрди рдореЗрдВ рд╡рд┐рд╖рдо рд╢рдмреНрдж рдХрд╛ рдЪрдпрди рдХрд░реЗ ?
' рд╡рд┐рджреНрдпрд╛рдЧреГрд╣ ' рдореЗрдВ рдХреМрди рд╕рд╛ рд╕рдорд╛рд╕ рд╣реИ ?
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдкреНрд░рд╢реНрди рдореЗрдВ рд╡рд┐рд╖рдо рд╢рдмреНрдж рдХрд╛ рдЪрдпрди рдХрд░реЗ?┬а
рдЕрдЪреНрдЫреЗ рдкрддреНрд░ рдореЗрдВ рдЕрдзреЛрд▓рд┐рдЦрд┐рдд рдЧреБрдг рд╣реЛрдиреЗ рдЖрд╡рд╢реНрдпрдХ рд╣реИред
(A) рдЙтАМрджреНрджреЗрд╢реНя┐╜...
рджрд┐рдП рдЧрдП рд╡рд╛рдХреНрдп рдореЗрдВ рдХрд╛рд▓реЗ рд╢рдмреНрдж рдХрд╛ рддрддреНрд╕рдо рд╢рдмреНрдж рдЬреНрдЮрд╛рдд рдХреАрдЬрд┐рдПред
рд╣...
' рджреЗрд╢реА рдореБрд░реНрдЧреА рд╡рд┐рд▓рд╛рдпрддреА рдмреЛрд▓ ' рдХрд╣рд╛рд╡рдд/рд▓реЛрдХреЛрдХреНрддрд┐ рдХрд╛ рд╕рд╣реА рдЕрд░реНрде рджрд┐рдП я┐╜...