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Population of three towns (in thousands) in four years given in bar graph and percentage of literate population of the towns given in line graph (some of the data is missing in the line graph).…

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Population of three towns (in thousands) in four years given in bar graph and percentage of literate population of the towns given in line graph (some of the data is missing in the line graph).

Figure



Following Table shows partial data of Percentage growth rate of literate population (year over
year)

Town 1Town 2Town 3
2020(50/7)%------
2021(155/3)%- (6800/203)%36%
2022---(200/3)%- (1600/51)%


What was the approximate literate population in town 2 in 2020?
  1. 415000
  2. 398000
  3. 406000
  4. 422000

Answer and explanation

Correct answer: C - 406000
Town 2 2021 literate = 60% of 450k = 270k. 2021 growth = -(6800/203)% = -68/203, so 2020 literate = 270 / (1 - 68/203) = 270 x 203/135 = 406k = 406000 (consistent with the chart: 70% of 580k).

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