SSC CPO Linear Seating Arrangement — Study Material & 10 Practice MCQs | ZestExam
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SSC CPO Linear Seating Arrangement
Study Material · Concept Notes · Shortcuts
This page covers SSC CPO Linear Seating Arrangement with complete concept notes, 10 graded practice MCQs, key points and exam-specific tips. Free to study.
Imagine people sitting on a bench in a straight line. Some face north (normal sitting), some face south (back towards north). You get clues about who sits where, how far from whom, and in which direction they face
💡Key Rules
1) Linear means straight line - either horizontal or vertical 2) People can face same direction or opposite directions 3) Left-Right is relative to the person's facing direction 4) Immediate left/right means directly adjacent 5) Between A and B means A and B are not adjacent.
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Formula Block
Memorise — at least one formula appears in every paper
If n people sit in a line, total positions = n. If person A is 3rd from left, then A is (n-2)th from right. Distance between positions = |Position1 - Position2| - 1. If A faces north and B is to A's right, then B sits on A's right side. If A faces south and B is to A's right, then B sits on A's left side when viewed from above.
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Exam Patterns
What examiners ask — read before attempting PYQs
→Common question types
1) Who sits at which position 2) How many people between two persons 3) Who faces which direction 4) Immediate neighbors identification 5) Position from left/right end
⚡Shortcut 1 - Direction Trick
When person faces north, their left-right matches your left-right. When person faces south, their left-right is opposite to your left-right
💡Remember
North facer's right = your right, South facer's right = your left
✏️Worked Example 1
1
R sits at position 1 (left end)
2
P sits at position 3 (given)
3
Q sits immediate right of P, so Q at position 4
4
S does not sit at right end (position 5), so S at position 2
5
T sits at remaining position 5
Final arrangement: R-S-P-Q-T (positions 1-2-3-4-5)
Shortcut 2 - Elimination Method: Start with definite positions first. Place people with clear position clues. Then use process of elimination for remaining people
✏️Worked Example 2
1
A sits at position 5 (2nd from right in 6-person line), faces south
2
B sits at position 3, faces north
3
C sits immediate left of A, so C at position 4
4
E sits between B and C, so E at position... wait, B is at 3, C is at 4, so E cannot sit between them as they are adjacent
🔑Re-check
E sits between B(3) and C(4) means there's an error in our arrangement
→Correct approach
If E is between B and C, and B is 3rd from left, then arrangement could be B-E-C. So B(3), E(4), C(5). But A is 2nd from right (position 5). This means A and C both at position 5 - impossible
→Re-reading
A at position 5, so C at position 4 (immediate left), E must be at position 2 (only position between B and C if we consider the linear sequence)
🔑Final check and arrangement
Position 1(?), B(2), Position 3(?), C(4), A(5), Position 6(?). E between B and C means E at position 3. Remaining positions filled by D and F
⚡Shortcut 3 - Reference Point Method
Pick one person with maximum clues as reference point. Build the entire arrangement around that person
⚠️#1 Common Mistake
Students confuse left-right when people face opposite directions. Always remember - when someone faces south, their personal left becomes your right when you view from above. Many students lose 2-3 marks just because of this directional confusion. Draw arrows to show facing direction to avoid this trap.
Test Linear Seating Arrangement under exam conditions
Four friends—Arun, Bina, Chetan, and Diya—sit in a straight line facing North. Bina sits immediately to the right of Arun. Who sits to the left of Chetan?
Practice 2easy
Five people sit in a line. Priya sits third from the left. How many people sit to the right of Priya?
Practice 3easy
Ravi, Sita, Tina, and Uma sit in a straight line. Sita is not at either end. Tina sits to the left of Uma. If Ravi is at the leftmost position, who sits at the rightmost position?
Practice 4easy
Four people—Aman, Bhavna, Chirag, and Divya—sit in a line. Chirag sits second from the right. Aman sits to the left of Chirag. Who sits at the rightmost position?
Practice 5medium
Six students—A, B, C, D, E, F—sit in a straight line. D sits third from the left. A sits to the left of D but not immediately. E sits immediately to the right of D. B sits at the rightmost position. C and F occupy the remaining positions, with F to the left of C. Which of the following is definitely true?
Practice 6medium
Seven people—P, Q, R, S, T, U, V—sit in a row facing East. R sits fourth from the left. S sits two places to the right of R. T sits immediately to the left of R. Q sits at the leftmost position. U and V occupy the remaining positions, with U to the left of V. What is the position of U from the left?
Practice 7medium
Six people—M, N, O, P, Q, R—sit in a line facing West. O sits fifth from the left. P sits two places to the left of O. N sits immediately to the left of P. M sits at one end. Q and R occupy the remaining positions, with Q to the right of R. Who sits third from the left?
Practice 8medium
Six colleagues—Aman, Bhavesh, Chetan, Deepti, Eshan, Fiona—sit in a row. Chetan sits fourth from the left. Eshan sits immediately to the right of Chetan. Aman sits to the left of Chetan but not immediately. Bhavesh sits at the leftmost position. Deepti and Fiona occupy the remaining positions, with Deepti to the left of Fiona. How many people sit between Aman and Eshan?
Practice 9medium
Six friends—Arun, Bhavna, Chitra, Deepak, Esha, and Faisal—sit in a straight line facing North. Bhavna sits third from the left. Deepak sits immediately to the right of Bhavna. Arun sits at one of the ends. Chitra sits to the left of Esha. Who sits second from the right?
Practice 10hard
Eight people — A, B, C, D, E, F, G, and H — are seated in a square arrangement (two on each side, facing inward). The following conditions apply:
1. A sits immediately to the left of B.
2. C sits directly opposite to D.
3. E is not adjacent to A.
4. F sits immediately to the right of G.
5. H sits directly opposite to A.
6. The person opposite to B is E.
Who sits immediately to the right of C?
60-Second Revision — Linear Seating Arrangement
Remember: nth from left = (total+1-n)th from right conversion formula
Trap: Direction confusion - south facer's right is your left from above view
Method: Place definite positions first, use elimination for remaining people
Formula: People between positions X and Y = |X-Y|-1
Quick check: Verify final arrangement satisfies all given conditions
Time management: Maximum 2 minutes per linear arrangement question
Strategy: Skip if more than 8 people or overly complex bidirectional clues