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%)
| |
| |
| |
[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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