Paper I · 9 Logical Reasoning & Analytical Ability · 9.6 Series, analogies and classification

9.6.6 Letter repetition series and alphabet position tricks

Blank-filling letter series repeat a short unit (sometimes rotated, mirrored or growing), so find the unit from the length of the series; alphabet questions are pure position arithmetic, so turn every letter into its number before you count.

  • APPSC Paper I · Paper I
  • Standard level
  • 8 min read
  • Full course

Key terms

  • letter repetition series
  • blanks series
  • repeating unit
  • rotation pattern
  • mirror pattern
  • growing pattern
  • alphabet positions
  • EJOTY
  • opposite letters
  • reverse alphabet
  • letters between
  • midway letter
  • modified alphabet
  • letter pairs in a word
  • nth letter of a repeated word
  • counting in a sequence

What this note covers

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

Read the full note in the app. It is part of the APPSC Paper I full course in Medha AI. Free in the app: the first chapter of each topic.

Read the full note in the app Logical Reasoning & Analytical Ability questions with answers

All Series, analogies and classification notes · APPSC Paper I syllabus · APPSC Paper I Mock 1 with answers · Start free

Medha AI writes its own notes and checks them against the sources listed. Medha AI is an independent preparation service. It is not affiliated with, endorsed by or connected to APPSC, TSPSC, MPSC, UPSC or any other commission or government body.