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Statement: 'Please switch off the lights when you leave the room.' — a notice in an office. Assumptions: I. Employees may otherwise leave the lights on.
II. Keeping the lights on when the room is empty wastes electricity. Which assumption(s) is/are implicit?

Competition practiceLogical / Critical
  • ANeither I nor II is implicit
  • BBoth I and II are implicit
  • COnly I is implicit
  • DOnly II is implicit

Step-by-Step Solution

The notice is needed only because people might leave the lights on (I) and because doing so is undesirable/wasteful (II); both underlie the request.
Answer: B) Both I and II are implicit

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