SAT Math Multiple Choice Question 34: Answer and Explanation

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Question: 34

4.

The populations and areas of five countries are shown in the graphs above. If population density is defined as , which of the five countries has the highest population density?

  • A. Ecuador
  • B. Uruguay
  • C. Venezuela
  • D. Chile

Correct Answer: A

Explanation:

A The top graph is of the countries' populations, and the bottom graph is of the countries' areas. Find the population density, , for each country by taking its number from the top graph and dividing that by its number from the bottom graph:

Ecuador = , which equals 33.33

Uruguay = , which equals 12.5

Venezuela = , which equals 20

Chile = , which equals 18.75

The highest value among the countries is that of Ecuador, which is (A).

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