Prelims · 8 Mental Ability · 8.15 Logic puzzles and problem solving

8.15.3 River crossing, water jugs and sequencing puzzles

Puzzles of moves and order are solved by writing the state after every move (who is where, how much is in each jug, what is done) and refusing any state that breaks a rule — the shortest list of safe states is the answer.

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

Key terms

  • river crossing
  • boat capacity
  • farmer wolf goat cabbage
  • missionaries and cannibals
  • bridge and torch
  • water jug puzzle
  • measuring with two vessels
  • HCF rule
  • sequencing
  • scheduling
  • critical path
  • burning ropes
  • monkey climbing pole
  • toasting both sides

What this note covers

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

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