Question

Beijing has 20.720.720, point, 7 million people and an area of 16,400\text{ km}^216,400 km 2 16, comma, 400, space, k, m, start superscript, 2, end superscript. Shanghai has 23.723.723, point, 7 million people and an area of 6300\text{ km}^26300 km 2 6300, space, k, m, start superscript, 2, end superscript. How many times as great is the population density of Shanghai as Beijing?

Answer 1

The population density of Shanghai is 2.98 times greater than the population density of Beijing

Explanation:

we know that

To find the population density, divide the total number of people by the area

step 1

Find the population density of Beijing

`(20,700,000)/(16,400)=1,262.2(people)/(km^(2))`

step 2

Find the population density of Shanghai

`(23,700,000)/(6,300)=3,761.9(people)/(km^(2))`

step 3

Divide the population density of Shanghai by the population density of Beijing

`3,761.9/1,262.2=2.98`

therefore

The population density of Shanghai is 2.98 times greater than the population density of Beijing