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MathematicsMathematics
6 May, 02:50

Beijing has 20.7 million people and an area of 16,400km^2. Shanghai has 23.7 million people and an area of 6300km^2. How many times as great is the population density of Shanghai as Beijing.

A. About the same

B. About 2 times as great

C. About 3 times as great

D. About 6 times as great

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Answers (2)
  1. 6 May, 03:17
    0
    The correct answer is C. Shanghai's population density is about 3 times as great as Beijing's.

    Step-by-step explanation:

    Population density is obtained from dividing the population number by the area number. Therefore, in order to answer the question we have to obtain the population density of each city first.

    Beijing: 20,700,000 / 16,400 = 1,262.19 per km2

    Shanghai: 23,700,000 / 6,300 = 3,761.90 per km2

    3,761.90 / 1,262.19 = 2.98

    Therefore, according to the calculations shown, Shanghai's population density is about 3 times as great as Beijing's.
  2. 6 May, 04:13
    0
    About 3times as great
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Home » Mathematics » Beijing has 20.7 million people and an area of 16,400km^2. Shanghai has 23.7 million people and an area of 6300km^2. How many times as great is the population density of Shanghai as Beijing. A. About the same B. About 2 times as great C.
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