Practice question

A supervisor promises: 'If an aircraft is authorized, then the runway is free.' In exactly which situation has the promise been broken?

  1. An aircraft is authorized and the runway is not free
  2. The runway is free and no aircraft was authorized
  3. No aircraft is authorized and the runway is busy
  4. The runway is free and an aircraft was authorized

Answer: A — An aircraft is authorized and the runway is not free

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