Course module

Reasoning and Aptitude — UPPSC Computer Operator Grade B 2026

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Lessons
690
Duration
111 hr 45 min
PYQs
16
Practice
6785

Exam importance: 18.6% of the exam, based on section capacity, PYQ history and paper recency.

Syllabus index

Lessons in this module

Series (Number and Letter Series) (Numerical Relations and Reasoning)

Coding Decoding

Analogy

Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning)

Series & Pattern Recognition (Patterns in 2D) (Symbol Series)

  1. SeriesDrm Video
  2. [Notes] SeriesPdf

Rule Detection (Logical Pattern Rules)

  1. Rule DetectionDrm Video
  2. [Notes] Rule DetectionPdf

Pattern Completion & Figure Completion

  1. Pattern CompletionDrm Video
  2. [Notes] Pattern CompletionPdf

Blood Relations

Directions (Direction Test)

Ranking, Order and Sequence

Logical Sequence Of Words

Seating Arrangements

Puzzle Solving (Puzzles)

Syllogisms

Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning)

Data Sufficiency

Selection Decision Table (Decision Making)

Calendar

Formulas and High - Yield Questions

  1. Practice Questions & Short TricksDrm Video
  2. Practice Questions & Short TricksDrm Video
  3. Practice Questions & Short TricksDrm Video
  4. Important Practice Questions & Short TricksDrm Video
  5. Important Practice Questions & Short TricksDrm Video
  6. Important Practice Questions & Short TricksDrm Video
  7. Important Practice Questions & Short TricksDrm Video
  8. Quick Revision, Short Tricks & QuestionsDrm Video
  9. [Notes] Important Practice Questions & Short Tricks 4Pdf
  10. [Notes] Important Practice Questions & Short Tricks 3Pdf
  11. [Notes] Important Practice Questions & Short Tricks 2Pdf
  12. [Notes] Important Practice Questions & Short TricksPdf
  13. [Notes] Practice Questions & Short Tricks 3Pdf
  14. [Notes] Practice Questions & Short Tricks 2Pdf
  15. [Notes] Practice Questions & Short TricksPdf
  16. [Notes] Quick Revision, Short Tricks & QuestionsPdf

Clock

Cubes & Dices

Venn Diagram

Analytical Reasoning (Counting Figures Reasoning)

Number System

HCF LCM

Finding HCF

  1. [Notes] Another Short Trick to find HCF of Big NumbersPdf
  2. Another Short Trick to find HCF of Big NumbersDrm Video
  3. Short Trick to find HCF by using smallest elementDrm Video
  4. How to find HCF Quickly with the help of given optionsDrm Video
  5. Short Trick to find HCF of Big NumbersDrm Video
  6. Short Trick to find HCF using Co-Prime Numbers ConceptDrm Video
  7. [Notes] Short Trick to find HCF using Co-Prime Numbers ConceptPdf
  8. [Notes] Short Trick to find HCF of Big NumbersPdf
  9. [Notes] How to find HCF Quickly with the help of given optionsPdf
  10. [Notes] Short Trick to find HCF by using smallest elementPdf
  11. [Notes] Short Trick to find HCF by minimum difference methodPdf
  12. [Notes] Trick to find HCF by Long Division MethodPdf
  13. [Notes] Tricks for HCF by Inspection, HCF by Prime FactorizationPdf
  14. Demo: Tricks for HCF by Inspection, HCF by Prime FactorizationStandard Video
  15. Demo: Trick to find HCF by Long Division MethodStandard Video
  16. Demo: Short Trick to find HCF by minimum difference methodStandard Video

Percentage

Conversion Between Fractions (Ratio) & Percentages

  1. Short Tricks to Remember Ratio to Percentage Table Part 1Drm Video
  2. Short Tricks to Remember Ratio to Percentage Table Part 2Drm Video
  3. Short Tricks to Remember Ratio to Percentage Table Part 3Drm Video
  4. Short Tricks to Remember Ratio to Percentage Table Part 4Drm Video
  5. Practice Problems on Ratio to Percentage ConversionDrm Video
  6. Practice Problems on Percentage to Ratio ConversionDrm Video
  7. Question on Ratio to Percentage ConversionDrm Video
  8. Important Property, Trick to find 10 & 1 percent of any numberDrm Video
  9. [Notes] Important Property, Trick to find 10 & 1 percent of any numberPdf
  10. [Notes] Question on Ratio to Percentage ConversionPdf
  11. [Notes] Practice Problems on Percentage to Ratio ConversionPdf
  12. [Notes] Practice Problems on Ratio to Percentage ConversionPdf
  13. [Notes] Short Tricks to Remember Ratio to Percentage Table Part 3Pdf
  14. [Notes] Short Tricks to Remember Ratio to Percentage Table Part 2Pdf
  15. [Notes] Short Tricks to Remember Ratio to Percentage Table Part 1Pdf
  16. [Notes] Basics of Percentages, Percentage - Fraction ConversionsPdf
  17. [Notes] Short Tricks to Remember Ratio to Percentage Table Part 4Pdf
  18. Demo: Basics of Percentages, Percentage - Fraction ConversionsStandard Video

Ratio and Proportion (Ratios)

Average

Profit and Loss

Simple Interest and Compound Interest

Simple Interest – Applications

  1. Tricks & Questions on money becoming multiple times on SIDrm Video
  2. Questions on Extra Amount Received on Extra Interest RateDrm Video
  3. Short Trick for Questions on Variable Rate of InterestDrm Video
  4. Short Trick for Questions on Difference in SIDrm Video
  5. Short Trick for Questions on Difference in AmountDrm Video
  6. Questions on Principal Money Divided into PartsDrm Video
  7. Simple Interest Important Practice Questions (Set 2)Drm Video
  8. [Notes] Simple Interest Important Practice Questions (Set 2)Pdf
  9. [Notes] Questions on Principal Money Divided into PartsPdf
  10. [Notes] Short Trick for Questions on Difference in AmountPdf
  11. [Notes] Short Trick for Questions on Difference in SIPdf
  12. [Notes] Short Trick for Questions on Variable Rate of InterestPdf
  13. [Notes] Questions on Extra Amount Received on Extra Interest RatePdf
  14. [Notes] Tricks & Questions on money becoming multiple times on SIPdf

Speed Time and Distance

Average Speed

  1. Concept & Short Tricks to calculate AVERAGE SPEED (1)Drm Video
  2. Concept & Short Tricks to calculate AVERAGE SPEED (2)Drm Video
  3. Concept & Short Tricks to calculate AVERAGE SPEED (3)Drm Video
  4. Important Practice Questions on AVERAGE SPEED (1)Drm Video
  5. Important Practice Questions on AVERAGE SPEED (2)Drm Video
  6. Important Practice Questions on AVERAGE SPEED (3)Drm Video
  7. Average - Short Tricks to Find Average SpeedDrm Video
  8. [Notes] Important Practice Questions on AVERAGE SPEED (3)Pdf
  9. [Notes] Important Practice Questions on AVERAGE SPEED (2)Pdf
  10. [Notes] Important Practice Questions on AVERAGE SPEED (1)Pdf
  11. [Notes] Concept & Short Tricks to calculate AVERAGE SPEED (3)Pdf
  12. [Notes] Concept & Short Tricks to calculate AVERAGE SPEED (2)Pdf
  13. [Notes] Concept & Short Tricks to calculate AVERAGE SPEED (1)Pdf
  14. [Notes] Average - Short Tricks to Find Average SpeedPdf

Train Problems

  1. Concept of Relative Speed Required for Problem on TrainsDrm Video
  2. Important Question & Short Trick on Train Problems (3)Drm Video
  3. Short Trick To Solve Problem on StoppagesDrm Video
  4. Conventions To Solve Problems on Train + Tricky QuestionsDrm Video
  5. Case 2_ Train Crossing a Platform, Bridge or TunnelDrm Video
  6. Important Question & Short Trick on Train Problems (2)Drm Video
  7. Case 3_ Two Trains Crossing One Other(Opposite Direction)Drm Video
  8. Important Question & Short Trick on Train Problems (1)Drm Video
  9. Case 4_ Two Trains Crossing One Other (Same Direction)Drm Video
  10. Case 1_ Train Crossing a stationary pole, signal or manDrm Video
  11. [Notes] Important Question & Short Trick on Train Problems (3)Pdf
  12. [Notes] Important Question & Short Trick on Train Problems (2)Pdf
  13. [Notes] Case 1_ Train Crossing a stationary pole, signal or manPdf
  14. [Notes] Case 3_ Two Trains Crossing One Other(Opposite Direction)Pdf
  15. [Notes] Case 4_ Two Trains Crossing One Other (Same Direction)Pdf
  16. [Notes] Conventions To Solve Problems on Train + Tricky QuestionsPdf
  17. [Notes] Important Question & Short Trick on Train Problems (1)Pdf
  18. [Notes] Short Trick To Solve Problem on StoppagesPdf
  19. [Notes] Case 2_ Train Crossing a Platform, Bridge or TunnelPdf
  20. [Notes] Concept of Relative Speed Required for Problem on TrainsPdf

Mensuration and Geometry

Arithmetic

Mixture and Alligation

Alligation Rule (Core Concept + Two-Ingredient Mixture)

  1. What is Mixture & AlligationDrm Video
  2. TCS Previous Year Question on Alligation RuleDrm Video
  3. WIPRO Previous Year Question on Alligation RuleDrm Video
  4. Where to apply Alligation Rule (Applications)Drm Video
  5. BANK PO & AMCAT Previous Year Question on Alligation RuleDrm Video
  6. GATE Exam (Mechanical) Asked Question on Alligation RuleDrm Video
  7. COGNIZANT & ACCENTURE Asked Questions on Alligation RuleDrm Video
  8. [Notes] TCS Previous Year Question on Alligation RulePdf
  9. [Notes] Where to apply Alligation Rule (Applications)Pdf
  10. [Notes] What is Mixture & AlligationPdf
  11. [Notes] BANK PO & AMCAT Previous Year Question on Alligation RulePdf
  12. [Notes] COGNIZANT & ACCENTURE Asked Questions on Alligation RulePdf
  13. [Notes] GATE Exam (Mechanical) Asked Question on Alligation RulePdf
  14. [Notes] WIPRO Previous Year Question on Alligation RulePdf

Profit–Loss Based Alligation (Cost Price, Selling at CP, Fake Profit)

  1. Solving PROFIT & LOSS Questions Using Alligation RuleDrm Video
  2. Water mixed to a mixture & sold at CP to make profit (1)Drm Video
  3. Water mixed to a mixture & sold at CP to make profit (2)Drm Video
  4. Water mixed to a mixture & sold at CP to make profit (3)Drm Video
  5. Selling item in 2 parts with given profit% or loss% (1)Drm Video
  6. Selling item in 2 parts with given profit% or loss% (2)Drm Video
  7. Selling item in 2 parts with given profit% or loss% (3)Drm Video
  8. [Notes] Selling item in 2 parts with given profit% or loss% (3)Pdf
  9. [Notes] Selling item in 2 parts with given profit% or loss% (2)Pdf
  10. [Notes] Selling item in 2 parts with given profit% or loss% (1)Pdf
  11. [Notes] Water mixed to a mixture & sold at CP to make profit (3)Pdf
  12. [Notes] Water mixed to a mixture & sold at CP to make profit (2)Pdf
  13. [Notes] Water mixed to a mixture & sold at CP to make profit (1)Pdf
  14. [Notes] Solving PROFIT & LOSS Questions Using Alligation RulePdf

Age Problems

Data Interpretation

Sequence and Series (Series)

Algebra

Permutation and Combination

Combinatorics

Previous-year questions

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