Aptitude & Reasoning

This is just the beginning. A humble start.

Master the language of logic. Where quick thinking meets deep understanding, and every puzzle becomes a pathway to clarity.

The gateway to placement glory. The MCQ round awaits no one—but it bows to the prepared.

Master the Fundamentals

Comprehensive coverage with practical shortcuts and proven strategies

Quantitative Aptitude

Number System

  • ✦Master divisibility rules—saves 30% of calculation time
  • ✦LCM & HCF: Use prime factorization for complex numbers
  • ✦Remainders & cyclicity: Focus on pattern within 4-5 iterations
  • ✦Last digit problems: Unit digit patterns repeat every 4-6 powers
  • ✦Factors & multiples: Count of divisors = (p₁+1)(p₂+1)...

Percentages & Fractions

  • ✦Convert percentages to fractions for speed
  • ✦Remember: 25% = 1/4, 33.33% = 1/3, 20% = 1/5
  • ✦Successive percentage change: (1 + x/100)(1 + y/100) - 1
  • ✦Use approximation when calculations get complex
  • ✦Common trap: Percentage of percentage ≠ Sum of percentages

Ratio & Proportion

  • ✦Simplification: Cross multiply and compare ratios
  • ✦Partnership problems: Profit ∝ Capital × Time
  • ✦Mixtures & allegations: Weighted average approach works
  • ✦Keep ratios in simplest form to spot patterns
  • ✦Rule of three: Ensure units match before applying

Profit, Loss & Discount

  • ✦Cost price–selling price shortcuts: Mark discount & profit mentally
  • ✦Successive discounts: Multiply (100-d₁%)%(100-d₂%)/10000
  • ✦Marked price concepts: MP = CP + Profit, MP = SP/(1-discount%)
  • ✦Discount trap: Discount on MP, profit on CP—don't mix
  • ✦Reverse calculation: Given SP and %, find CP using formulas

Simple & Compound Interest

  • ✦SI formula: (P × R × T) / 100 — straightforward but tricky in context
  • ✦CI for 2–3 years: Use compound interest tables for speed
  • ✦Difference CI-SI: For 2 years = (P × R²) / (100 × 100)
  • ✦Real test: Rates change mid-period—calculate in parts
  • ✦Principal grows after each year in CI—keep track carefully

Algebra & Equations

  • ✦Linear & quadratic equations: Factorization is your best friend
  • ✦Always check if the equation is a perfect square
  • ✦Substitution often reveals hidden patterns
  • ✦For quadratic: If sum of roots = -b/a, product = c/a
  • ✦Never forget to check solutions in original equation

Averages & Weighted Averages

  • ✦Weighted average concepts: Sum(value × weight) / Sum(weights)
  • ✦Age-based problems: Set up as average age shifting
  • ✦Replacement method: Remove one, add another = net change
  • ✦Average = Total / Count — use total to track changes
  • ✦If average increases by x, total increases by x × count

Time, Speed & Distance

  • ✦Relative speed = sum (opposite direction) or difference (same)
  • ✦Train crossing: Include both lengths in distance calculation
  • ✦Average speed ≠ mean of speeds—use total distance / total time
  • ✦Boat & stream: Downstream = (B+S), Upstream = (B-S)
  • ✦Meeting point: Time to meet is same for both travelers

Logical Reasoning

Syllogism & Logic

  • ✦Draw circles for Venn diagrams—visualization is key
  • ✦Never assume beyond what's given
  • ✦All, Some, None—master these keywords

Analogies & Relationships

  • ✦Find the exact relationship, not just similarity
  • ✦Apply the same relationship to the blank pair
  • ✦Sometimes the trick is recognizing exception patterns

Coding-Decoding

  • ✦Look for the pattern in position shifts
  • ✦Check if it's alphabetical, numerical, or both
  • ✦Reverse-engineering from answer choices saves time

Blood Relations & Seating

  • ✦Use a family tree for complex relationships
  • ✦For seating: create a simple diagram
  • ✦Track constraints carefully—one missed detail ruins it

MCQ Mastery Strategies

Essential tactics to conquer the initial screening round

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Elimination Method

Remove obviously wrong answers first. Narrows down your choices significantly.

  1. 1.Identify clearly wrong options immediately
  2. 2.Compare remaining options carefully
  3. 3.Choose the best among remaining choices
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Time Management

2 minutes per question is the magic number. Know when to skip and return.

  1. 1.If unsure after 90 seconds, mark and move on
  2. 2.Return to tough questions with fresh perspective
  3. 3.Easy questions build confidence and momentum
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Reverse Engineering

Work backwards from answer choices. Often faster than solving forward.

  1. 1.Check if answers fit the question pattern
  2. 2.Substitute answer options into the question
  3. 3.See which one makes logical sense
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Pattern Recognition

Spot recurring patterns in questions. Tests often repeat structures.

  1. 1.Study past papers for recurring question types
  2. 2.Learn standard tricks for each pattern
  3. 3.Apply memorized solutions with speed

The Path to Mastery

Speed without accuracy is chaos. Accuracy without speed is hesitation. Master both, and you become unstoppable.The MCQ round doesn't test how smart you are. It tests how well you've prepared. And preparation always wins.

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