what is the average population size in 1960?

Question

in 2010, the population of the United States was 3x10^8 and the land area is 9,191,966 sq kilometers. in 1960, the area is the same but the population is 179,323,175. what is the average population size in 1960?

Answer 1

I think you meant "What was the population density in 1960?"

 

If that analysis is correct, you merely divide the population by the area to obtain persons per square kilometer.

 

In this case, 179,323,175 ÷ 9,191,966 km² = 19.5 persons/km²