Practice Quiz

Customs Officer Exam Prep

Category - Customs Officer

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One day, Officer Ferong spent 4 hours processing passengers from a flight from Brazil at a rate of 16 passengers every 40 minutes. The next day, she spent 4 hours processing passengers at a rate of 18 every 40 minutes. What was the average number of passengers she processed during these two 4- hour periods?
  1. 283
  2. 204
  3. 141.5
  4. 102
  5. None of these
Explanation
Answer: D - 16/40 = .40 (this says Officer Ferong processed passengers at a rate of .40 per minute on the first day); .40 x 60 = 24 passengers per hour; and 24 x 4 = 96 passengers every four hours. For the next day, the calculations are 18/40 = .45 x 60 = 27 x 4 = 108. The average of 108 and 96 is 108 + 96 ? 2 = 102.
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