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Question

Six people M, N, O, P, Q and R are sitting in a straight row, facing north. O is sitting to the immediate right of N. P is sitting to the immediate right of O. Q is sitting to the immediate right of P. R is sitting to the immediate left of N. If there are only five people sitting to the right of M, who is at the extreme right end of the row?

The correct answer is
Q

Seating Arrangement Analysis

This problem involves determining the exact seating order of six people (M, N, O, P, Q, R) based on relative positions and one absolute condition.

Step 1: Determine Relative Order

Analyze the given clues to establish the relative positions:

  • 'O is sitting to the immediate right of N' implies the sequence: N O
  • 'P is sitting to the immediate right of O' extends the sequence: N O P
  • 'Q is sitting to the immediate right of P' further extends it: N O P Q
  • 'R is sitting to the immediate left of N' places R before N: R N O P Q

This sequence (R N O P Q) accounts for 5 people.

Step 2: Use Absolute Position Clue

The clue 'If there are only five people sitting to the right of M' is key.

  • Since there are 6 people in total, and 5 are to the right of M, M must be the person at the extreme left end.
  • Combining this with the relative order derived in Step 1 (R N O P Q), the only position left for M is to the left of R.

Therefore, the complete seating arrangement from left to right is: M R N O P Q.

Step 3: Identify Person at Extreme Right

In the established arrangement M R N O P Q, the person at the extreme right end is Q.

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Important Questions from Seating arrangement

  1. Five people A, B, C, D and E are seated about a round table. Every chair is spaced equidistant from adjacent chairs. 

    (i) C is seated next to A 

    (ii) A is seated two seats from D 

    (iii) B is not seated next to A 

    On the basis of above information, which of the following must be true? 

    1. D is seated next to B 

    2. E is seated next to A 

    3. D and C are separated by two seats 

    Select the correct answer using the code given below:

  2. There are seven persons up on a ladder, A, B, C, D, E, F and G (not in that order). A is further up than E but is lower than C. B is in the middle. G is between A and B. E is between B and F. If F is between E and D, the person on the bottom step of the ladder will be

  3. Consider that: 

    1. A is taller than B. 

    2. C is taller than A. 

    3. D is taller than C. 

    4. E is the tallest of all. 

    If they are made to sit in the above order of their height, who will occupy the mid position?

  4. Four children are sitting in a row. A is occupying the seat next to B but not next to C. If C is not sitting next to D, who is/are occupying seat/seats adjacent to D?

  5. A question paper must have a question on one of the eight poets: A, B, C, D, E, F, G or H The first four belong to the medieval period while the rest are considered modern poets Generally, modern poets figure in the question paper in alternate years. Generally those who like H like G also; and those who like F like E also. The paper-setter does not like to ask about F as he has written a book on F, but he likes F. Last year, the paper contained a question on A. 

    On the basis of the information given, this year's paper is most likely to contain a question on

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