medium · GMAT Verbal

A city transit authority has proposed extending subway service hours later into the night on weekends, arguing that the extension will generate enough additional fare revenue to cover the added operating costs. The proposal has been framed publicly as a response to concerns raised over the past several months.

Which of the following would it be most useful to determine in evaluating the transit authority's argument?

  1. Whether enough riders currently forgo late-night subway trips, and would use the service if it were available, to generate fare revenue exceeding the added operating costs.
  2. How much it currently costs to operate the subway system during regular hours, a baseline operating cost that says nothing about how many riders would actually use a late-night service.
  3. Whether nearby cities offer late-night subway service.
  4. How subway fares compare to bus fares in the city.
  5. Whether riders have requested later service hours in customer surveys.

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