SSC CGL Quick Revision Notes
Master SSC CGL preparation with comprehensive quick revision notes featuring subject-wise important formulas, grammar rules, vocabulary, reasoning concepts, and general knowledge for all tiers.
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Quantitative Aptitude Revision
Important formulas, concepts, and shortcuts for quick revision.
Arithmetic Formulas
Percentage & Profit-Loss
| Concept | Formula | Application |
|---|---|---|
| Percentage | Percentage = (Value/Total) × 100 | Basic percentage calculation |
| Percentage Change | % Change = (Change/Original) × 100 | Increase/decrease calculation |
| Successive Percentage | a% + b% + (a×b)/100 | Net percentage change |
| Profit Percentage | Profit% = (Profit/CP) × 100 | Profit calculation |
| Loss Percentage | Loss% = (Loss/CP) × 100 | Loss calculation |
| Selling Price | SP = CP × (100 ± P/L%)/100 | Price with profit/loss |
Time, Speed & Distance
| Concept | Formula | Units |
|---|---|---|
| Speed | Speed = Distance/Time | km/h or m/s |
| Average Speed | 2xy/(x+y) [equal distance] | Harmonic mean |
| Relative Speed | Sum/difference of speeds | Same/opposite direction |
| Time Conversion | km/h × 5/18 = m/s | Unit conversion |
| Train Problems | Time = (L1 + L2)/(S1 ± S2) | Platform/train crossing |
English Language Revision
Important grammar rules, vocabulary, and writing concepts.
Grammar Rules
Important Grammar Concepts
Subject-Verb Agreement
- Singular subject → Singular verb
- Plural subject → Plural verb
- Collective nouns usually take singular verbs
- Either/or, neither/nor follow proximity rule
- Indefinite pronouns (each, everyone) take singular verbs
Tenses Rules
- Present Indefinite: General truths, habits
- Present Continuous: Ongoing actions
- Present Perfect: Completed actions with present relevance
- Past Indefinite: Completed past actions
- Future Tense: Will/shall + base verb
Articles Usage
- 'A': Before consonant sounds
- 'An': Before vowel sounds
- 'The': Definite specific reference
- No article: General concepts, proper nouns
- Exceptions: Unique objects, superlatives
Important Vocabulary & Idioms
Commonly Confused Words
- Affect/Effect: Verb/Noun
- Complement/Compliment: Complete/Praise
- Principal/Principle: Head/Rule
- Stationary/Stationery: Fixed/Writing material
- Their/There/They're: Possessive/Place/Contraction
Important Idioms
- Bite the bullet: Endure pain
- Break the ice: Start conversation
- Hit the nail on the head: Be accurate
- Once in a blue moon: Very rarely
- Piece of cake: Very easy
Word Roots
- Bene: Good (benevolent)
- Mal: Bad (malicious)
- Phobia: Fear (arachnophobia)
- Logy: Study (biology)
- Anti: Against (antibiotic)
General Intelligence Revision
Important reasoning concepts, patterns, and shortcuts.
Reasoning Concepts
Analogy & Classification
Number Series Patterns
- Arithmetic progression: +constant
- Geometric progression: ×constant
- Square series: n² pattern
- Cube series: n³ pattern
- Prime numbers: 2,3,5,7,11...
- Alternating patterns: Two different series
Blood Relations
- Father's father: Grandfather
- Mother's brother: Maternal uncle
- Brother's wife: Sister-in-law
- Daughter's husband: Son-in-law
- Sister's son: Nephew
- Use family tree for complex relations
Coding-Decoding
- Letter position: A=1, B=2...
- Reverse position: Z=1, Y=2...
- Letter shifting: +n positions
- Pattern coding: Group patterns
- Symbol coding: Symbol-letter mapping
General Knowledge Revision
Important facts, current affairs, and static GK.
Important GK Points
Current Affairs & Static GK
Important Books & Authors
- War and Peace: Leo Tolstoy
- Godan: Munshi Premchand
- Discovery of India: Jawaharlal Nehru
- Midnight's Children: Salman Rushdie
- Train to Pakistan: Khushwant Singh
Important Dates
- Republic Day: January 26
- Independence Day: August 15
- Gandhi Jayanti: October 2
- World Environment Day: June 5
- Human Rights Day: December 10
First in India
- First President: Dr. Rajendra Prasad
- First PM: Jawaharlal Nehru
- First Woman PM: Indira Gandhi
- First Governor General: Lord Mountbatten
- First Chief Justice: Justice H. J. Kania
Key Formulas Compilation
Most important formulas for quick last-minute revision.
Essential Formulas
Mathematics Formulas
Algebra Formulas
- (a+b)² = a² + 2ab + b²
- (a-b)² = a² - 2ab + b²
- a² - b² = (a+b)(a-b)
- (a+b)³ = a³ + 3a²b + 3ab² + b³
- (a-b)³ = a³ - 3a²b + 3ab² - b³
- a³ + b³ = (a+b)(a² - ab + b²)
Geometry Formulas
- Triangle Area: ½ × base × height
- Circle Area: πr²
- Circle Circumference: 2πr
- Rectangle Area: length × breadth
- Square Area: side²
- Cube Volume: side³
Trigonometry
- sin²θ + cos²θ = 1
- 1 + tan²θ = sec²θ
- 1 + cot²θ = cosec²θ
- sin2θ = 2sinθcosθ
- cos2θ = cos²θ - sin²θ
- tan2θ = 2tanθ/(1-tan²θ)
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Download Revision NotesFrequently Asked Questions
Q1: How to effectively use quick revision notes?
Answer: Use revision notes for daily 15-20 minute quick reviews, last-minute preparation before tests, identifying weak areas, and reinforcing important concepts. Focus on formulas, rules, and key points that are frequently asked.
Q2: What are the most important formulas to remember?
Answer: Focus on percentage formulas, profit-loss, time-speed-distance, algebra identities, geometry area formulas, and trigonometry identities. These are frequently tested and can save calculation time.
Q3: How often should I revise these notes?
Answer: Revise daily for 15-20 minutes, with comprehensive weekly revisions. Before mock tests, spend 30-45 minutes going through all key points. Regular revision helps in better retention.
Q4: Are these notes sufficient for Tier 2 preparation?
Answer: Revision notes are excellent for quick review and last-minute preparation, but they should complement comprehensive study. For Tier 2, focus more on advanced concepts and practice in addition to these notes.
Q5: How to remember grammar rules effectively?
Answer: Create flashcards for grammar rules, practice with examples, learn through application in sentences, and revise regularly. Understanding the logic behind rules helps in better retention.
Q6: What's the best way to revise vocabulary?
Answer: Use mnemonics, word roots, contextual learning, and regular practice. Create word groups, use vocabulary in sentences, and revise with flashcards. Focus on commonly confused words and idioms.
Final Revision Strategy
- Daily Revision: 15-20 minutes daily quick review
- Weekly Comprehensive: 1-hour detailed revision weekly
- Mock Test Preparation: 30 minutes before each test
- Focus Areas: Formulas, grammar rules, vocabulary
- Practice Application: Apply concepts in practice questions
- Regular Updates: Keep notes updated with new learnings
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