Practice Quiz

Customs Officer Exam Prep

Category - Customs Officer

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There are three dogs in a canine team in charge of inspecting cargo at an international airport for prohibited fruits, vegetables, and meats. Last week, one of these dogs identified 20 cartons of prohibited fruit among 120 total cartons on a flight arriving from overseas. Assuming that the dog selected the first carton to be inspected totally at random, what was the probability that this carton contained a shipment of prohibited fruit?
  1. 1/3
  2. 1/4
  3. 1/5
  4. 1/6
  5. None of these
Explanation
Answer: D - Twenty cartons out of 120 total cartons contained prohibited fruit. Therefore, if you randomly selected one carton from the 120 cartons, the probability of selecting one of the prohibited cartons of fruit is 20 out of 120 or 20/120 = 1/6.
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