Paper I · 16 Logical Reasoning, Analytical Ability & Data Interpretation · 16.8 Series, analogies and classification

16.8.2 Letter and alphanumeric series

Turn every letter into its position number (A = 1 … Z = 26), solve the series as a number series, and turn the answer back into a letter; arrangement questions are solved by counting positions from the correct end.

  • TGPSC MPSO / ASO · Paper I
  • Standard level
  • 6 min read
  • Full course

Key terms

  • letter series
  • alphabet positions
  • EJOTY
  • opposite letters
  • reverse alphabet
  • letter groups
  • alphanumeric series
  • repeating pattern
  • blanks
  • arrangement questions
  • position from left
  • position from right

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 TGPSC MPSO / ASO full course in Medha AI. Free in the app: the first chapter of each topic.

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, TGPSC (formerly TSPSC), MPSC, UPSC or any other commission or government body.