Logical Reasoning Letter Series & Coding-Decoding KMU 2022
PMDC Verified Question 20 of 22
Find the term which does NOT fit into the sequence:

1 CV, 5 FU, 9 IT, 15 LS, 17 OR
A
17 OR
B
5 FU
C
9 IT
D
15 LS
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: 15 LS
Concept: Sequence Anomaly Detection.

Formula: Number pattern = \(+4\); 1st letter = \(+3\); 2nd letter = \(-1\).

Solution:

  • Numbers: 1 \(\xrightarrow{+4}\) 5 \(\xrightarrow{+4}\) 9 \(\xrightarrow{+4}\) 13 (not 15) \(\xrightarrow{+4}\) 17.


  • Letters: C \(\xrightarrow{+3}\) F \(\xrightarrow{+3}\) I \(\xrightarrow{+3}\) L \(\xrightarrow{+3}\) O.


  • Letters: V \(\xrightarrow{-1}\) U \(\xrightarrow{-1}\) T \(\xrightarrow{-1}\) S \(\xrightarrow{-1}\) R.


The term 15 LS breaks the arithmetic number progression (should be 13 LS).

Why other options are incorrect:

• Options A, B, and C: Conform strictly to the arithmetic and alphabetical rules.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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