L, M, N, O, P, Q, and R are sitting around a circular table facing the centre. M is sitting to the immediate right of Q and immediate left of O. N is sitting to the immediate right of O. P is sitting to the immediate left of L. R is sitting to the immediate right of L and immediate left of Q. The position of how many persons will remain unchanged if all the persons are arranged in alphabetical order in clockwise direction starting from L (including L)?

APEDIA

NTPC Graduate Tier 1

2025 • 05 Jun, 2025 • Shift-3

L, M, N, O, P, Q, and R are sitting around a circular table facing the centre. M is sitting to the immediate right of Q and immediate left of O. N is sitting to the immediate right of O. P is sitting to the immediate left of L. R is sitting to the immediate right of L and immediate left of Q. The position of how many persons will remain unchanged if all the persons are arranged in alphabetical order in clockwise direction starting from L (including L)?

Correct Answer

[Circular Logic Blueprint]: For people facing the centre, 'Left' corresponds to clockwise movement, and 'Right' corresponds to counter-clockwise movement.[Mappi......

💡 Analysis & Explanation

[Circular Logic Blueprint] ▼

For people facing the centre, 'Left' corresponds to clockwise movement, and 'Right' corresponds to counter-clockwise movement.

[Mapping the Circle] ▼

1. 'M is to the immediate right of Q and immediate left of O' -> CCW order

Q -> M -> O. 2. 'N is to the immediate right of O' -> N follows O in CCW -> Q -> M -> O -> N. 3. 'R is to the immediate left of Q' -> R is CW from Q. 'R is immediate right of L' -> L is CW from R. CCW order becomes L -> R -> Q. 4. 'P is to the immediate left of L' -> P is CW from L. ▼

[Assembling the Full Arrangement]

Joining the segments counter-clockwise gives: P -> L -> R -> Q -> M -> O -> N. Converting this to strictly Clockwise starting from L gives the sequence: L, P, N, O, M, Q, R. ▼

[Comparative Analysis]

The question asks us to compare this with a strictly alphabetical clockwise arrangement starting from L: L, M, N, O, P, Q, R. ▼

[Matching Result]

Position 1 ▼

L vs L (Match)

Position 3 ▼

N vs N (Match)

Position 4 ▼

O vs O (Match)

Position 6 ▼

Q vs Q (Match)

Position 7 ▼

R vs R (Match)

Conclusion ▼

The positions of exactly 5 people remain entirely unchanged.

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