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For how many of the five vehicle types is the number of silver vehicles less than 20 percent of the total number of vehicles of that type?
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By approximately what percent does the total number of green vehicles exceed the total number of brown vehicles?
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For the 5 vehicle types and 6 vehicle colors, what is the average (arithmetic mean) number of vehicles per type per color, rounded to the nearest whole number?
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According to the distribution shown above, which age-group contains the median age of Internet users?
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$$N= 32^{19}-32$$
What is the units digit of $$N$$?
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