Answer the questions based on the following information.
The following table gives the urban population of a country and the percentages of total population in rural and urban areas as recorded in the 10-years censuses during 1901-81.
Table 1. Urban and rural population 1901-1981
from the table
Urban population in 1901 = 25 million
Urban population in 1981 = 150 million
Change in urban population = 150-25 = 125 million in 80 years
Therefore, the rate of urban population growth per year over the period 1901-81 is about = 125/80 = 1.5625 million per year
Hence B is the correct answer.
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