Prelims · 8 Mental Ability · 8.3 Percentages and commercial arithmetic

8.3.6 Percentage applications: population, depreciation, elections and exam marks

Population and machine-value questions are compound interest in disguise, while election and exam questions are about finding the right base: valid votes, votes polled or maximum marks.

  • APPSC Group 2 · Prelims
  • Standard level
  • 6 min read
  • Full course

Key terms

  • population growth
  • birth rate
  • death rate
  • migration
  • depreciation
  • book value
  • elections
  • invalid votes
  • margin of victory
  • pass marks
  • aggregate marks

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Common trapsFoundation
  5. Quick revisionFoundation

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