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GATE 2017 CE (CE2) – Question 6

General Aptitude · Analytical Aptitude: Logical Reasoning and Deduction · 2 marks · Multiple choice

Bhaichung observes people entering and leaving a car-service centre with a single service window. People invariably come out in the order they went in, but time spent inside varies: some leave within minutes while others take much longer. What can be concluded?

  1. The centre operates first come, first served, with variable service times depending on specific customer needs.
  2. Customers are served in arbitrary order because service-completion times vary.
  3. Some people leave within minutes, so the system likely operates last come, first served.
  4. Entering early ensures shorter service times and most people attempt this.

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Show answer and explanation

Correct answer: (A) The centre operates first come, first served, with variable service times depending on specific customer needs.

Explanation

A single service window with preserved arrival/departure order supports first-come-first-served processing. Different customer needs can produce different service times without changing that order. Therefore **A** follows; short durations alone do not imply last-come-first-served service.