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    Question

    The population of a city was 25,000 in 2018. It increased

    by 10% in 2019, decreased by 15% in 2020, and increased again by 20% in 2021. What was the population at the end of 2021?
    A 18050 Correct Answer Incorrect Answer
    B 28450 Correct Answer Incorrect Answer
    C 22050 Correct Answer Incorrect Answer
    D 28050 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Population in 2019 = 1.10 ├Ч 25000 = 27500

    Population in 2020 = 0.85 ├Ч 27500 = 23375

    Population in 2021 = 1.20 ├Ч 23375 = 28050

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