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Homework Help: Numerical reasoning question

  1. Oct 30, 2011 #1
    1. The problem statement, all variables and given/known data

    Some tourists return to the same country several times in the same year. In 2000, it was noted that 80% of tourists made a single trip to the country, 15% came twice, and 5% came at least three times. How many individual tourists visited Italy in 2000.

    (Table shows "Tourists statying at least one night when visiting Italy": 22 800 000.)

    2. Relevant equations

    3. The attempt at a solution

    x = 22800000/(.8+2*.15+3*.05) = 18 240 000.

    So I'd say there were up to 18 240 000 individual tourists. But the question, a multiple choice question, doesn't have anything close to this option. Am I overlooking something, or misinterpreting it? Could there be a typo?
  2. jcsd
  3. Oct 30, 2011 #2

    Ray Vickson

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    Homework Helper

    Are you missing some information? How long is a once-a-year trip, on average? For example, last year I visited London just once, but stayed 7 nights.

  4. Oct 30, 2011 #3
    That's all the information I have. It's a sample numeracy test question. It came in a list of them, and the others seem pretty straightforward, not brain-teasers, just testing basic skills.
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