SSC CGL 2025 Tier 1 Reasoning PYQ – 18 Sep 2025 Shift 1 (23 Questions with Solutions)

SSC CGL 2025 Reasoning PYQ: Tier 1 18 Sep Shift 1 Practice Questions

Use this set to measure your speed on letter series, coding and blood relations as SSC actually asked them. It is the General Intelligence and Reasoning section of the SSC CGL 2025 Tier 1 paper from 18 September 2025, Shift 1. Aptitude360 includes worked solutions for most questions.

Reasoning topics in the CGL 18 Sep 2025 Shift 1 section

• Letter-cluster series built on fixed alphabet gaps
• Number series using factorials and alternate add-and-double patterns
• Reverse-word analogies and letter coding by shifting positions
• Sentence coding by matching common words
• Blood relations through marriage and children
• Inequality-based conclusions and statement-conclusion reasoning
• Symbol substitution, odd-one-out and a boat-and-stream speed question

Key rules for this CGL Reasoning set

• Factorial series: \( n!=n\times(n-1)! \)
• Boat speed in still water: \( b=\dfrac{d+u}{2} \)
• Stream speed: \( s=\dfrac{d-u}{2} \)
• Speed: \( v=\dfrac{\text{distance}}{\text{time}} \)

Tips for SSC CGL General Intelligence preparation

• Write letter positions under each cluster to spot the gap pattern quickly
• Draw a family tree with gender symbols for every blood relation question
• Apply BODMAS only after replacing every symbol in substitution questions

Who should practise this Reasoning PYQ

SSC CGL candidates who have learnt the basic reasoning types and now want real exam questions to sharpen accuracy.