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16/08/2026

📐 GATE 2027 General Aptitude – Spatial Aptitude | Topic 1: Spatial Visualization

Welcome to the Spatial Aptitude Series by Eduz! 🚀

In Spatial Visualization, the main skill is to imagine, interpret and mentally manipulate objects in 2D and 3D space. It tests how quickly you can understand shapes, positions, orientations, rotations and different views of an object.

📚 In this whiteboard revision sheet: ✅ 2D & 3D Visualization
✅ Rotation – 90°, 180°, 270°
✅ Mirror Reflection
✅ Translation & Orientation
✅ Front, Top & Side Views
✅ Mental Rotation
✅ Shape Transformation
✅ Visualization of 3D Objects
✅ Figure-Based Questions
✅ Elimination Techniques
✅ Quick Spatial Reasoning Tricks

💡 Golden Rule:
VISUALIZE → ROTATE → COMPARE → ELIMINATE → ANSWER

🎯 GATE 2027 Tip:
Spatial Aptitude में calculation से ज्यादा observation, visualization and practice important है. Complex figures को छोटे parts में divide करें और object को mentally rotate करके options eliminate करें.

📌 Save this whiteboard note for quick revision and follow Eduz for the complete GATE 2027 General Aptitude series.

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14/08/2026

🇮🇳 80 Years of Independence | Eduz Special – 15 August 2027 🇮🇳

India completes 80 years of Independence in 2027. On this special occasion, Eduz celebrates the journey of our nation and the power of education in building a stronger and brighter India. 📚✨

🎓 Freedom to Learn • Freedom to Dream • Freedom to Achieve

From classrooms to careers, knowledge gives every young mind the power to create a better future. Let’s celebrate the spirit of freedom, unity, innovation and progress.

🌟 One Nation • One Dream • One Future

🇮🇳 Happy 81st Independence Day, India!
Celebrating 80 Years of Independence, Unity & Progress.

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14/08/2026

14/08/2026

📢 GATE 2027 Registration – Latest Update | Eduz

🚨 Important Update for GATE 2027 Aspirants!

GATE 2027 registration has been rescheduled. The registration process will now begin from 27 August 2026 instead of 14 August 2026.

📌 Key Updates:
🗓️ Registration Starts: 27 August 2026
📝 Regular Registration Deadline: 27 September 2026
⏰ Late Fee Deadline: 5 October 2026
✏️ Application Correction: 14–21 October 2026
🎯 Exam: February 2027
🏛️ Conducting Institute: IIT Madras

📚 Stay updated, start your preparation early, and don't wait for the registration window to begin!

🎓 Eduz – Learn • Prepare • Achieve

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12/08/2026

📊 GATE 2027 Quantitative Aptitude – Data Interpretation | Complete Formula & Shortcut Tricks

Welcome to the 14th topic of GATE Quantitative Aptitude by Eduz! 🚀

Data Interpretation (DI) is an important part of General Aptitude where you need to read, analyze and interpret numerical data presented through tables, bar graphs, line graphs, pie charts and caselets.

The key to DI is not just calculation—it is understanding the data correctly, selecting the right formula and avoiding unnecessary calculations.

📚 Topics Covered: ✅ Percentage & Percentage Change
✅ Ratio & Proportion
✅ Average & Weighted Average
✅ Table-Based DI
✅ Bar Graph Interpretation
✅ Line Graph Interpretation
✅ Pie Chart Problems
✅ Caselet-Based DI
✅ Total, Difference & Ratio
✅ Percentage Contribution/Share
✅ Growth Rate
✅ Highest & Lowest Values
✅ Successive Percentage Change
✅ Common Calculation Techniques
✅ Approximation Tricks
✅ Time-Saving Shortcuts
✅ Quick Revision Formula Table

🔥 Must-Know Formulas:

Percentage = (Part / Whole) × 100

Percentage Change = [(New − Old) / Old] × 100

Average = Sum of Observations / Number of Observations

Growth Rate = [(New Value − Old Value) / Old Value] × 100

For a pie chart:

Percentage = (Central Angle / 360°) × 100

and

Value = (Central Angle / 360°) × Total

💡 DI Golden Rule:

READ → IDENTIFY → PLAN → CALCULATE → CHECK

Don't start calculating immediately. First understand what the question is asking and identify only the data required.

🎯 GATE 2027 Strategy: 1️⃣ Read the complete table/graph carefully.
2️⃣ Note the units and scale.
3️⃣ Identify totals, ratios and percentages.
4️⃣ Use approximation when the options are sufficiently separated.
5️⃣ Avoid calculating unnecessary values.
6️⃣ Practice GATE PYQs to develop speed and accuracy.

⚡ Quick Tip:
In DI questions, visual understanding + percentage/ratio skills + calculation speed can save a lot of time. Practice mental calculations and common percentage values regularly.

📌 SAVE this whiteboard sheet for revision and SHARE it with fellow GATE aspirants!

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11/08/2026

📐 GATE 2027 Quantitative Aptitude – Mensuration & Geometry | Complete Formula & Shortcut Tricks

Welcome to the 12th topic of GATE Quantitative Aptitude by Eduz! 🚀

Mensuration & Geometry is an important area for mastering questions based on length, perimeter, area, surface area, volume, angles, triangles, circles, polygons and coordinate geometry. A strong command of standard formulas and geometric properties can significantly reduce calculation time in GATE aptitude.

This whiteboard-style revision sheet covers the essential 2D & 3D mensuration formulas, geometry identities, coordinate geometry formulas, special triangles, Pythagorean theorem, quick results and exam-oriented shortcuts for GATE 2027.

📚 Topics Covered: ✅ Square, Rectangle & Triangle
✅ Parallelogram, Rhombus & Trapezium
✅ Circle & Sector
✅ Cube & Cuboid
✅ Cylinder, Cone & Sphere
✅ Surface Area & Volume
✅ Triangle Properties & Special Triangles
✅ Pythagorean Theorem
✅ Heron's Formula
✅ Polygon Angle Formulas
✅ Coordinate Geometry
✅ Distance & Midpoint Formula
✅ Slope & Equation of Line
✅ Angle Between Two Lines
✅ Important Geometry Ratios
✅ 30°–60°–90° & 45°–45°–90° Tricks
✅ Quick Calculation Shortcuts
✅ GATE Exam Tips & Formula Revision

🔥 Must-Remember:

Area of Triangle = ½ × Base × Height

Area of Circle = πr²

Circumference = 2πr

Volume of Cylinder = πr²h

Volume of Cone = ⅓πr²h

Volume of Sphere = ⁴⁄₃πr³

a² + b² = c² — Pythagorean Theorem

📍 Coordinate Geometry Essentials:

Distance:
√[(x₂−x₁)² + (y₂−y₁)²]

Midpoint:
((x₁+x₂)/2, (y₁+y₂)/2)

🎯 GATE 2027 Strategy: Don't try to memorize formulas randomly. Group them by 2D shapes, 3D solids, triangles, circles and coordinate geometry, then practice GATE PYQs to understand which formula applies to which situation.

💡 Quick Tip:
Always draw a simple diagram whenever possible, keep all units consistent, and look for symmetry, similar triangles and standard geometric ratios before starting lengthy calculations.

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10/08/2026

📚 GATE 2027 Quantitative Aptitude – Logarithm | Complete Formula & Shortcut Tricks

Welcome to the 11th topic of GATE Quantitative Aptitude by Eduz! 🚀

Logarithm is an important mathematical concept that is closely connected with exponents, powers, equations, inequalities, growth models, and numerical calculations. A strong understanding of logarithmic laws can help you simplify expressions and solve aptitude questions much faster.

This whiteboard-style revision sheet covers the essential logarithm formulas, laws, important results, change of base, common and natural logarithms, logarithmic equations, inequalities, approximation techniques, and exam-oriented shortcuts for GATE 2027 preparation.

📚 Topics Covered: ✅ Basic Definition of Logarithm
✅ Domain & Conditions of Logarithm
✅ Laws of Logarithms
✅ Product Rule
✅ Quotient Rule
✅ Power Rule
✅ Root Rule
✅ Reciprocal Rule
✅ Change of Base Formula
✅ Important Logarithmic Results
✅ Common Log (Base 10)
✅ Natural Log (Base e)
✅ Antilogarithm
✅ Solving Logarithmic Equations
✅ Logarithmic Inequalities
✅ Special Logarithmic Results
✅ Approximation & Calculation Tricks
✅ Quick Revision Formula Table
✅ Common GATE Exam Tips

🔥 Must-Know Formulas:

logₐ(MN) = logₐM + logₐN

logₐ(M/N) = logₐM − logₐN

logₐ(Mᵏ) = k logₐM

logₐN = log_bN / log_ba

The change of base formula is especially useful when the given logarithm has an inconvenient base.

💡 Important Conditions:

For logₐx to be defined:

a > 0, a ≠ 1, x > 0

Always check these conditions before solving logarithmic equations or inequalities.

🎯 GATE 2027 Strategy: First learn the fundamental laws of logarithms, then practice simplification and change-of-base problems. After that, move to logarithmic equations, inequalities and GATE PYQs to improve speed and accuracy.

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10/08/2026

🎲 GATE 2027 Quantitative Aptitude – Probability | Complete Formula & Shortcut Tricks

Welcome to the 10th topic of GATE Quantitative Aptitude by Eduz! 🚀

Probability is one of the most important topics in quantitative aptitude, especially for questions involving events, counting, conditional probability, independence, Bayes' theorem, and common random experiments. A clear understanding of sample space and event relationships can make even complex probability questions much easier.

This whiteboard-style revision sheet covers the essential Probability formulas, important properties, conditional probability, multiplication and addition rules, independent and mutually exclusive events, total probability, Bayes' theorem, binomial probability, and exam-oriented shortcuts for GATE 2027.

📚 Topics Covered: ✅ Sample Space & Events
✅ Basic Probability Formula
✅ Complementary Events
✅ Addition Theorem
✅ Multiplication Theorem
✅ Conditional Probability
✅ Independent Events
✅ Mutually Exclusive Events
✅ Total Probability Theorem
✅ Bayes' Theorem
✅ Probability of At Least One Event
✅ Probability of At Most One Event
✅ Exactly One / None Cases
✅ Coin & Dice Problems
✅ Binomial Probability
✅ Permutation & Combination in Probability
✅ Classical Probability
✅ Quick Calculation Tricks
✅ Quick Revision Formula Table
✅ Common GATE Exam Tips

🔥 Must-Know Formulas:

P(E) = Favourable Outcomes / Total Outcomes

P(Eᶜ) = 1 − P(E)

For two events:

P(A ∪ B) = P(A) + P(B) − P(A ∩ B)

Conditional probability:

P(A|B) = P(A ∩ B) / P(B)

For independent events:

P(A ∩ B) = P(A) × P(B)

💡 Most Useful Shortcut:

For “at least one” type questions:

P(at least one) = 1 − P(none)

This complementary approach can save considerable time in many GATE probability problems.

🎯 GATE 2027 Strategy: First master sample space, events and basic probability, then move to conditional probability, independence and Bayes' theorem. Finally, practice coin, dice, counting and binomial problems through GATE PYQs to develop speed and accuracy.

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10/08/2026

🧮 GATE 2027 Quantitative Aptitude – Permutation & Combination | Complete Formula & Shortcut Tricks

Welcome to the 9th topic of GATE Quantitative Aptitude by Eduz! 🚀

Permutation & Combination (P&C) is an important counting-based topic that tests your ability to arrange and select objects under different conditions. The key is to understand the difference between arrangement (order matters) and selection (order does not matter) and then apply the appropriate formula.

This whiteboard-style revision sheet covers the essential P&C formulas, special cases, repetition, circular arrangements, derangements, distribution methods, and exam-oriented shortcuts for GATE 2027 preparation.

📚 Topics Covered: ✅ Factorial & Basic Counting
✅ Permutation Formula
✅ Combination Formula
✅ Important P&C Results
✅ Relationship Between ⁿPᵣ and ⁿCᵣ
✅ Circular Permutations
✅ Permutations with Repetition
✅ Combinations with Repetition
✅ Selection with Repetition
✅ Restricted Arrangements
✅ “At Least” & “At Most” Problems
✅ Derangements
✅ Distribution of Objects
✅ Pascal's Identity
✅ Complementary Counting
✅ Quick Calculation Tricks
✅ Quick Revision Formula Table
✅ Common GATE Exam Tips

🔥 Must-Know Formulas:

n! = n(n−1)(n−2)…2×1

ⁿPᵣ = n!/(n−r)!

ⁿCᵣ = n!/[r!(n−r)!]

And the important relationship:

ⁿPᵣ = ⁿCᵣ × r!

For circular arrangements of n distinct objects:

Number of arrangements = (n−1)!

💡 Most Important Trick: Before applying any formula, ask yourself:

👉 Does ORDER matter?

If YES → Permutation (P)
If NO → Combination (C)

For repeated/identical objects, remember to divide by the factorials of the repeated counts.

🎯 GATE 2027 Strategy: Start with factorials and basic counting, then master P&C formulas, circular arrangements, repetition and restrictions. After that, practice GATE PYQs and mixed problems so you can quickly identify which counting method is required.

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