SSC CGL 2025 Tier 1 Reasoning PYQ – 22 Sep 2025 Shift 3 (24 Questions with Solutions)

SSC CGL 2025 Tier 1 Reasoning PYQ 22 Sep Shift 3: Coding, Series, Syllogism

SSC CGL 2025 Tier 1 Reasoning, 22 September 2025 Shift 3, is the General Intelligence and Reasoning section of that shift as a standalone practice set. It covers coding-decoding, letter and number series, syllogism, sign substitution and situation-based questions. Aptitude360 gives a worked solution for every question.

Topics covered in this CGL 2025 Reasoning set

• Address matching and word formation from given letters
• Letter coding, number coding and reverse decoding
• Alphabet series and number series, including spotting the wrong term
• Statement and conclusion, syllogism and inequality-based conclusions
• Sign substitution and interchange of signs and numbers
• Blood relations, odd one out and pipes and cisterns
• Courses of action and situation-based judgement

Key formulas and rules for this Reasoning section

• Fill in time \( a \), empty in time \( b \) with \( b>a \): \( T=\dfrac{ab}{b-a} \)
• Letter positions: \( A=1,\ B=2,\ \ldots,\ Z=26 \)
• Forward shift by \( k \) with wraparound: \( n+k \), or \( n+k-26 \) if \( n+k>26 \)
• Constant-gap series: \( a_{n}=a+(n-1)d \)

Revision tips for SSC CGL Reasoning

• Write letter positions under the word before decoding any code
• In series, check differences first, then second differences, then multiplication patterns
• For syllogism, draw Venn diagrams and accept only conclusions true in every case

Who should take this sectional PYQ

SSC CGL aspirants who want focused Reasoning practice from a recent real shift before taking full Tier 1 papers.