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A nurse checks 8 patients per hour. Due to hospital rush, she takes 20% less time per patient. Total patients in 3 hours?

Correct answer: B. 30

  • A. 24
  • B. 30
  • C. 32
  • D. 36

Explanation

The nurse checks 8 patients per hour, so the time per patient is:60 minutes/8=7.5 minutes per patient20% of 7.5=0.2×7.5=1.5 minutes So, new time per patient:7.5−1.5=6 minutes per patientTotal time = 3 hours=180 minutesAt 6 minutes per patient:180/6=30 patients

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Logical problems present several conditions about people, objects, events or choices and require their possible arrangements to be tested. They cover constraint-based reasoning, rankings, matching, grouping, scheduling and elimination, with attention to the difference between a complete solution and a possibility that merely satisfies one condition.

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