Practice Questions
Concept Explanation
Seating-arrangement questions place people in a linear row (usually facing North or South). You use fixed positions (left/right, 1st from an end), adjacency (immediate left/right), and between clues to build the full order or answer who sits where.
Rules to remember
- Facing North: left and right match the usual left-to-right row you draw.
- Facing South: each person’s left/right is reversed from your view; read “from the sitters’ point of view” carefully.
- Rank in row: kth from the right in n seats → seat (n − k + 1) from the left.
- Between two seats i and j (i < j): count = j − i − 1.
- Ends and middle: in 5 seats, middle is 3rd; in 6 seats there are two centre seats (3rd and 4th).
How to solve fast
- Fix ends or given positions first; fill “immediate left/right” and “between” blocks next.
- When only left/right ranks are given, convert both to seat numbers from one side.
- Cross-check that “not at end” and “not adjacent” rules are satisfied before picking an option.
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Q1 EasyIn a row of 8 people, Priya is 3rd from the left and Rahul is 3rd from the right. How many persons are sitting between Priya and Rahul?ExplanationSeats 3 and 6; persons between = 6 − 3 − 1 = 2.
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Q2 EasySeven persons sit in a row. A is 4th from the left. What is A’s position from the right?ExplanationIn 7 seats, 4th from the left equals 4th from the right (7 − 4 + 1 = 4).
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Q3 EasyIn a row of 10 persons, M is 5th from the left and N is 4th from the right. How many persons are between M and N?ExplanationM at 5, N at 7; between = 7 − 5 − 1 = 1.
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Q4 EasyIn a row of 6 students facing North, A is 2nd from the left and B is 2nd from the right. How many students are between A and B?ExplanationSeats 2 and 5; between = 5 − 2 − 1 = 2.
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Q5 EasyIn a row of 6 persons facing North, B sits 5th from the left. A sits 3 places to the left of B. Which position is A from the left?ExplanationThree seats left of position 5 is seat 2.
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Q6 EasySix people facing North sit in a row. Who is sitting immediately to the left of the person who is 2nd from the right?Explanation2nd from the right is one in from the end; that person’s left neighbour is 3rd from the right.
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Q7 EasySeven persons sit in a row facing North. X is 3rd from the left and Y is 3rd from the right. How many persons are between X and Y?ExplanationSeats 3 and 5; between = 5 − 3 − 1 = 1.
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Q8 EasySix persons sit in a row facing North. F is 2nd from the left and G is 2nd from the right. H sits in the 3rd seat from the left. How many persons are to the right of H?ExplanationH is at seat 3; persons to the right occupy seats 4, 5 and 6 — three persons.
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Q9 EasyIn a row of 7 persons facing North, A is 3rd from the left and B is 3rd from the right. Who sits immediately to the right of A?ExplanationA is at seat 3; the next seat to the right is the 4th from the left.
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Q10 EasyEight persons sit in a row facing North. C is 4th from the left and D is 4th from the right. How many persons are between C and D?ExplanationBoth are at seat 4 in a row of 8.
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Q11 EasyFive persons sit in a row facing North. A is at the left end. E is at the right end. B is to the immediate right of A. D is to the immediate left of E. Who sits in the middle?ExplanationA–B–C–D–E; C is in the middle.
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Q12 EasyIn a row of 8 persons facing North, J is 4th from the left and K is 4th from the right. How many persons are between J and K?ExplanationBoth occupy seat 4 in a row of 8; nobody sits between them.
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Q13 EasyEight persons sit in a row facing North. A is 2nd from the left and B is 2nd from the right. C sits in the 4th seat from the left. How many persons are to the left of C?ExplanationThree persons are seated to the left of the 4th seat.
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Q14 EasySix persons sit in a row facing North. P is 3rd from the left. Q is 3rd from the right. R sits immediately to the left of P. Who sits immediately to the right of Q?ExplanationP at 3 and Q at 4; the seat to the right of Q is 5 — the person 2nd from the right.
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Q15 EasyIn a row of 13 persons, M is 7th from the left and N is 7th from the right. How many persons are between M and N?ExplanationBoth occupy the middle (7th) seat in a row of 13.
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Q16 EasyFive persons facing North sit in a row. B is at the left end and A is at the right end. C is in the middle. D is immediately to the left of A. E is immediately to the right of B. Who sits 2nd from the left?ExplanationOrder B–E–C–D–A; the 2nd from the left is E.
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Q17 EasyIn a row of 15 people, X is 8th from the left and Y is 8th from the right. How many people are between X and Y?ExplanationBoth are at seat 8 in a 15-person row.
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Q18 EasySix persons A, B, C, D, E and F sit in a row facing North. C is 3rd from the left and D is 3rd from the right. How many persons are sitting between C and D?ExplanationC at 3 and D at 4 in six seats; they are adjacent, so none between.
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Q19 EasyIn a row of 8 persons, A is 4th from the left and B is 3rd from the right. How many persons are between A and B?ExplanationA at seat 4; B at seat 6; between = 6 − 4 − 1 = 1.
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Q20 EasyFive persons A, B, C, D and E sit in a row facing North. A and E are at the two ends. B is to the immediate right of A. D is to the immediate left of E. Who sits in the middle?ExplanationA–B–C–D–E; C is in the middle seat.
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Q21 EasyIn a row of 6 persons facing North, S is 1st from the left and T is 1st from the right. How many persons are between S and T?ExplanationEnds are seats 1 and 6; between = 6 − 1 − 1 = 4 persons.
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Q22 MediumFive persons A, B, C, D and E sit in a row facing North. B is at one end. C sits between A and E. D is immediately to the left of E. Who sits in the middle?ExplanationLeft to right: B–A–C–D–E. C occupies the third (middle) seat.
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Q23 MediumSix persons P, Q, R, S, T and U sit in a row facing North. Q is at the left end. T sits between Q and R. R is immediately to the left of S. P is not at either end. Who sits at the right end?ExplanationOrder left to right: Q–T–R–S–P–U. U is at the right end.
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Q24 MediumFive persons sit in a row facing North. E is at the right extreme. A is to the left of B. C is to the right of D. B and D are not adjacent. Who sits in the middle seat?ExplanationOne valid order is D–C–A–B–E; the middle seat is A.
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Q25 MediumP, Q, R, S and T sit in a row facing North. P is at one end. Q is 2nd from the left. R is at the other end. S sits between Q and R. Who occupies the middle seat?ExplanationLeft to right: P–Q–S–T–R; the third seat is S.
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Q26 MediumFour persons W, X, Y and Z sit in a row facing North. X is to the left of Y. Z is to the right of W. Y and W are not adjacent. Who sits at the right extreme?ExplanationOrder W–Z–X–Y fits all rules; Y is at the right end.
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Q27 MediumA, B, C and D sit in a row facing North. D is at the left end. B is to the right of C. A is not at either end. Which is the order from left to right?ExplanationD at left; B right of C; A not at ends → D–C–A–B.
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Q28 MediumIn a row of 9 persons, K is 5th from the left and L is 5th from the right. How many persons are between K and L?ExplanationBoth are at seat 5; nobody sits between them.
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Q29 MediumFive friends A, B, C, D and E sit in a row. A and B sit together. C does not sit at any end. D is at the left end. Who is at the right end?ExplanationD–A–B–C–E keeps A–B together and C off the ends; E is at the right end.
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Q30 MediumP, Q, R, S and T sit in a row facing North. Q is exactly in the middle. P is immediately to the left of Q. S is immediately to the right of Q. T is at the left end. Who is at the right end?ExplanationT–P–Q–S–R left to right; R is at the right end.
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Q31 MediumIn a row of 12 people, A is 6th from the left and B is 6th from the right. How many people are between A and B?ExplanationBoth occupy seat 6 in a 12-person row.
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Q32 MediumFour boys A, B, C and D sit in a row facing North. A is between B and C. D is immediately to the right of C. Who sits at the left end?ExplanationOrder B–A–C–D; B is at the left end.
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Q33 MediumIn a row of 11 people, P is 6th from the left and Q is 5th from the right. How many people are between P and Q?ExplanationP at 6; Q at 7; between = 7 − 6 − 1 = 0.
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Q34 MediumFour girls sit in a row facing North. P and Q sit together. R is at the left end. S is not at any end. Who occupies the rightmost seat?ExplanationR–S–P–Q is the only order with R at the left, P–Q together, and S not at an end; Q is rightmost.
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Q35 MediumIn a row of 5 persons facing South, who is to the immediate left of the person at the right end (from the sitters’ point of view)?ExplanationThe right-end person’s left neighbour is the person 2nd from the right.
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Q36 MediumSeven persons sit in a row facing North. D is 3rd from the left. F is 3rd from the right. E sits between D and F. G is at the right end. How many persons are between E and G?ExplanationD at 3, F at 5, E at 4. Between E (seat 4) and G (seat 7) are seats 5 and 6 — two persons.
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Q37 MediumFive persons A, B, C, D and E sit in a row facing North. C is 2nd from the left. A is to the left of C. E is to the right of D. B is at the right end. Who is at the left end?ExplanationA–C–D–E–B with E right of D; A is at the left end.
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Q38 MediumFour persons P, Q, R and S sit in a row facing North. P is to the immediate right of Q. R is to the immediate left of S. S is at the right end. Who is at the left end?ExplanationS at right; R left of S → …R–S; P right of Q → Q–P. Full order Q–P–R–S; Q is at the left end.
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Q39 HardA, B, C, D and E sit in a row facing North. B sits in the middle. A is not adjacent to B. C is at one end. D is to the immediate right of B. Who is at the left end?ExplanationOrder C–A–E–B–D satisfies B in the middle, D right of B, C at an end, and A not next to B; C is at the left end.
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Q40 HardFive persons A, B, C, D and E sit in a row facing North. C is at the left end. A is 2nd from the right. B is to the left of A. D is not adjacent to C. Who is at the right end?ExplanationC–B–D–A–E: A is 2nd from right, B left of A, D not next to C; E is at the right end.