The population of a country in 2020 was 100 million with a growth rate of 2% per year. Assuming exponential growth, the population in 2022 is approximately: MCQ with Answer and Explanation
The population of a country in 2020 was 100 million with a growth rate of 2% per year. Assuming exponential growth, the population in 2022 is approximately:
A. 102 million
B. 108 million
C. 104 million
D. 104.04 million
Answer: Option D
Solution (By JKSSB Mock Tests)
Using compound formula: 100 × (1.02)^2 = 104.04 million.
Explanation:
Class midpoint = (Lower limit + Upper limit) / 2 = (20 + 30) / 2 = 25. This represents the central value of the class for calculations like mean in grouped data.
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