Logical Reasoning Number Series & Numerical Progressions KMU 2024
PMDC Verified Question 17 of 18
Find out the missing term in the sequence: 15, 14, 12, 9, _?
A
5
B
6
C
7
D
8
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: 5
Concept: Increasing Subtraction Steps.

Formula: \(T_n = T_{n-1} - n\)

Solution:

  • \(15 - 1 = 14\)


  • \(14 - 2 = 12\)


  • \(12 - 3 = 9\)


  • \(9 - 4 = 5\)


Why other options are incorrect:

Option B: Subtracts 3 again instead of 4.

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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