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Jan 20263 min readPinaki Nandan Hota

Ultimate Aptitude Formula Sheet to Crack Any Off-Campus Exam

A printable formula sheet for Quant, Logical, and Aptitude rounds.

AptitudePlacement PreparationOff CampusCareer Tips

If there’s one thing I’ve learned after 15 years in IT recruitment and campus hiring, it’s this:

Most candidates don’t fail off-campus exams because they are weak.
They fail because they prepare the wrong way.

I’ve interviewed candidates who could code well, communicate clearly, and still get rejected—simply because aptitude became the first elimination filter. One bad section. One missed cutoff. End of the road.

And here’s the uncomfortable truth.

Off-campus aptitude exams are not testing intelligence.
They are testing speed, pattern recognition, and formula recall under pressure.

That’s exactly why this guide exists.

This is not another “practice more questions” article. This is a formula-first, recruiter-backed approach to cracking aptitude rounds—especially for off-campus drives where competition is brutal and time is limited.


Why Aptitude Is the Real Gatekeeper in Off-Campus Hiring

Let me take you behind the scenes.

When companies conduct off-campus hiring, they receive:

  • 20,000+ applications

  • Limited interview bandwidth

  • Tight project deadlines

So they use aptitude tests to cut 80–90% of candidates in one shot.

Not because aptitude is more important than skills—but because it’s scalable.

Most off-campus exams follow a predictable structure:

  • Quantitative Aptitude

  • Logical Reasoning

  • Verbal Ability

And within that structure, the same formulas repeat again and again.

If you know them cold, you survive the first round.
If you don’t, your resume never gets seen.


People Also Ask: Can Aptitude Be Cracked by Memorizing Formulas?

Short answer: Yes—but only if you understand where to apply them.

In real exams, nobody asks you to derive formulas. They expect you to:

  • Recognize the question type

  • Recall the right formula instantly

  • Apply it within seconds

That’s why toppers don’t “solve”—they identify and execute.

This formula sheet is designed exactly for that mindset.


Section 1: How Off-Campus Aptitude Exams Are Actually Designed

Most candidates assume all aptitude exams are different.

They’re not.

Across service-based companies, product firms, and mass recruiters, I’ve seen the same patterns repeat for years.

Typical Off-Campus Aptitude Pattern

  • 20–25 Quantitative questions

  • 15–20 Logical Reasoning questions

  • 10–15 Verbal questions

  • Time pressure (less than 1 minute per question)

The goal isn’t accuracy alone. It’s accuracy under speed.

That’s why formula clarity matters more than endless practice.


Section 2: Quantitative Aptitude Formula Sheet (Core Areas)

This is where most eliminations happen.

Below are the must-remember formula clusters. You don’t need 100 formulas. You need the right 25.


1️⃣ Percentage Formulas (Most Repeated Topic)

  • Percentage = (Value / Total) × 100

  • New Value = Old Value × (1 ± Percentage / 100)

  • Successive percentage change = a + b + (ab / 100)

Recruiter insight:
If you master percentages, Profit & Loss, SI/CI, and Data Interpretation become easier automatically.


2️⃣ Profit and Loss Shortcuts

  • Profit % = (Profit / Cost Price) × 100

  • Loss % = (Loss / Cost Price) × 100

  • Selling Price = Cost Price × (100 ± Profit or Loss %) / 100

Shortcut logic:

  • 10% profit → multiply by 1.1

  • 20% loss → multiply by 0.8

3️⃣ Simple Interest & Compound Interest

  • SI = (P × R × T) / 100

  • Amount = P + SI

  • CI (1 year) = P × (1 + R/100)^T

Insider tip:
Most off-campus exams test difference between SI and CI for 2 years. Memorize that shortcut—it saves time.


4️⃣ Time, Speed, and Distance

  • Speed = Distance / Time

  • Time = Distance / Speed

  • Average Speed (same distance) = (2ab) / (a + b)

Train problems?
Always convert km/hr ↔ m/s using:

  • × 5/18 or × 18/5

Section 3: Logical Reasoning Formula Patterns (Often Ignored)

Candidates underestimate reasoning. Recruiters don’t.

Reasoning is used to check:

  • Attention to detail

  • Pattern recognition

  • Mental stamina

Here are the high-frequency reasoning patterns.


1️⃣ Number Series Logic

Common patterns:

  • +2, +4, +6

  • ×2, ×3

  • Alternating patterns

  • Prime numbers

Shortcut mindset:
Don’t calculate blindly. Look for:

  • Addition first

  • Multiplication second

  • Mixed patterns last


2️⃣ Coding-Decoding Basics

  • Letter position (A=1, Z=26)

  • Forward/backward shifting

  • Reverse logic

Insider note:
Most companies reuse the same coding logic with different letters.

3️⃣ Blood Relations & Direction Sense

Golden rules:

  • Draw diagrams

  • Fix one direction (North) and stick to it

  • Don’t solve in your head under pressure

Candidates who draw finish faster. Always.


Affiliate Tool Recommendations (Naturally Integrated)

From experience, candidates who combine formulas with structured practice tools perform significantly better.

Two resources I often recommend:

  • Aptitude preparation courses (Quant + Reasoning focused)
    Useful for timed practice and formula reinforcement.

  • Mock test platforms with analytics
    Helps identify weak areas instead of guessing.

These tools don’t replace study—but they accelerate readiness, especially for off-campus exams.

Frequently Asked Questions

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