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      Question

      A clock is started at 12:00 noon. By 10 minutes past

      05:00, the hour hand has turned through
      A 145° Correct Answer Incorrect Answer
      B 155° Correct Answer Incorrect Answer
      C 135° Correct Answer Incorrect Answer
      D More than one of the above Correct Answer Incorrect Answer
      E None of the above Correct Answer Incorrect Answer

      Solution

      From noon(12:00 PM) to 10 minutes past 5 (5:10 PM), there are 5 hours and 10 minutes, or 310 minutes. Therefore, by 10 minutes past 5, the hour hand will have turned through 310 minutes × 0.5° per minute = 155°.

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