Erudex journal
Logical Reasoning Tests: Sequences, Deduction and Patterns
6 min read22 October 2026
Logical reasoning tests measure how you find rules in sequences and draw valid conclusions from statements. They are widely used for technology, consulting and analyst roles.
Key points
- •Practise under timed conditions
- •Review explanations for every mistake
- •Use scores alongside other evidence
Common patterns
Constant differences, multiplication, growing gaps and syllogisms cover most items.
- •Arithmetic sequences
- •Geometric sequences
- •Second-order differences
- •All/some/none deductions
Strategy
Check the differences between terms first, then ratios, then alternating patterns.
Practise with Erudex
Try free timed practice papers at erudexonline.com/aptitude-tests, take the full Erudex IQ Test with a report and certificate at erudexonline.com/iq-test, or screen candidates with invite links from the HR assessments page.
Frequently asked questions
- Is logical reasoning learnable?
- Yes. Familiarity with common patterns improves speed and accuracy.