Civil Service Exam (Subprofessional) Numerical Ability — Ratio, Proportion & PercentageConcept Map
For visual learners attacking the Civil Service Exam (Subprofessional) 2026, a Ratio, Proportion & Percentage concept map is usually worth more than ten pages of linear notes. CSC builds many Ratio, Proportion & Percentage items around the same handful of relationships — spot them on a map and you recognise them at a glance in the Numerical Ability paper.
Exam context
On the Civil Service Exam (Subprofessional) 2026, the Numerical Ability subtest carries a "~25% weightage" weight in Civil Service Commission (CSC)'s pattern. Ratio, Proportion & Percentage lands at position 4th out of 9 in the standard review order. Target score is 80%, and roughly 17 items come from Numerical Ability on a typical Civil Service Exam (Subprofessional) paper.
Ratio, Proportion & Percentage - Concept map
Central Concept
Ratio, Proportion & Percentage
Related Concepts
Concept
Ratio
Sub Concepts
- Basic ratio definition
- Expressing ratios
- Simplifying ratios
- Converting mixed numbers to ratios
- Three-term ratios
Relationship To Central
fundamental building block
Concept
Proportion
Sub Concepts
- Cross multiplication
- Finding unknown terms
- Direct proportion
- Rate and speed problems
- Scale and measurement
Relationship To Central
application of ratio equality
Concept
Percentage
Sub Concepts
- Finding rate or percentage
- Finding base or original value
- Discount and markup
- Tax calculations
- Profit and loss
- Depreciation
Relationship To Central
special ratio with base 100
Concept
Word Problems
Sub Concepts
- Student surveys
- Shopping and commerce
- Transportation problems
- Financial calculations
- School enrollment scenarios
Relationship To Central
real-world applications
Concept Connections
To
Proportion
From
Ratio
Strength
strong
Relationship
Proportion is equality of two ratios
To
Percentage
From
Ratio
Strength
strong
Relationship
Percentage is a ratio with denominator 100
To
Cross Multiplication
From
Proportion
Strength
strong
Relationship
Cross multiplication solves proportion equations
To
Decimal Conversion
From
Percentage
Strength
strong
Relationship
Percentages convert to decimals for calculations
To
All Concepts
From
Word Problems
Strength
strong
Relationship
Real-world applications require all three concepts
To
Survey Problems
From
Finding Rate
Strength
moderate
Relationship
Surveys often require calculating rates and percentages
To
Original Price Problems
From
Finding Base
Strength
strong
Relationship
Finding original prices from discounted amounts
To
Depreciation
From
Profit Calculations
Strength
moderate
Relationship
Both involve comparing new and original values
To
Discount Calculations
From
Tax Calculations
Strength
moderate
Relationship
Similar formulas but opposite operations
To
Complex Proportions
From
Three-term Ratios
Strength
moderate
Relationship
Multi-variable proportion problems
Ready to practise for the Civil Service Exam (Subprofessional) 2026?
Super Tutor's AI review plan adapts to your weak areas and builds a weekly practice schedule around your target Civil Service Exam (Subprofessional) exam date.