AI Study Pack
ssc cgl percentage
Quantitative AptitudeSSCClass 10
AI-generated cheatsheet with key concepts, formulas, and common mistakes — plus audio, MCQs, mind maps & more.
AI-generated
SSC CGL Percentage Cheat Sheet
Key Definitions
- Percentage: A fraction expressed as a part of 100.
- Base Value: The original amount from which the percentage is calculated.
- Increase/Decrease: Change in value expressed as a percentage of the base value.
Important Concepts
Calculation of Percentage
- To find a percentage of a number:
Percentage = (Part / Whole) × 100
- To find the whole from a percentage:
Whole = (Part / Percentage) × 100
Increase and Decrease
- Increase:
New Value = Original Value + (Percentage × Original Value)
- Decrease:
New Value = Original Value - (Percentage × Original Value)
Key Formulas
Percentage Increase = ((New Value - Original Value) / Original Value) × 100 ✅ Percentage Decrease = ((Original Value - New Value) / Original Value) × 100 ✅ Common Mistakes to Avoid
Common Mistake: Forgetting to convert the percentage to a decimal when calculating part values.
Memory Tricks
Tip: "PART" — Percentage, Amount, Relative (base), Total. Use this acronym to remember the components of percentage calculations.
Key Diagrams
Percentage Calculation:
[Base Value] -----> [Part] (X%)
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[Whole Value] -------> [100%]
Shortcuts for Speed
- Quick Percentage Calculation:
- 10% of a number is simply dividing by 10.
- 5% is half of 10%.
- 1% is dividing by 100.
- Common Percentages:
- 50% = Half
- 25% = Quarter
- 75% = Three-quarters
Tip: Memorize common percentage equivalents to speed up calculations.
This pack also includes
Audio Podcast
5-min summary
10 MCQs
Exam-pattern
Mind Map
Visual connections
Flashcards
Spaced repetition
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