1 General Mental and Psychological Abilities · 1.3.3 Time, work, speed and distance

1.3.3.9 Speed problems: late and early arrival, stoppages and chases

Late-and-early questions are one distance at two speeds with a known time gap; stoppage questions are the distance lost per hour; chases are gap ÷ relative speed.

  • APPSC Group 1
  • Advanced level
  • 7 min read
  • Full course

Key terms

  • late and early
  • usual speed
  • fraction of usual speed
  • stoppages per hour
  • chase
  • head start
  • overtaking
  • speed change saves time
  • messenger along a column
  • car meets walker

What this note covers

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

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