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Statement: 'Please switch off the lights and fans while leaving the room.' — a notice in an office. Which of the following is an assumption implicit in the statement? (An assumption is something taken for granted.)

Competition practiceLogical / Critical
  • AEmployees never leave the room during working hours.
  • BThere is no electricity supply in the office.
  • CSwitching off lights and fans when the room is not in use saves electricity.
  • DThe office wants to reduce the number of its employees.

Step-by-Step Solution

The notice is issued only because leaving appliances on wastes power; it therefore takes for granted that switching them off saves electricity. The other options are unrelated or contradictory.
Answer: C) Switching off lights and fans when the room is not in use saves electricity.

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