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    Question

    In 2020, the number of students in a school was 1,200. It

    rose by 15% in 2021, then fell by 10% in 2022, and finally rose by 25% in 2023. What was the total number of students by the end of 2023?
    A 1966.2 Correct Answer Incorrect Answer
    B 1845.5 Correct Answer Incorrect Answer
    C 1552.5 Correct Answer Incorrect Answer
    D 1330.5 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Students in 2021 = 1.15 × 1200 = 1380

    Students in 2022 = 0.90 × 1380 = 1242

    Students in 2023 = 1.25 × 1242 = 1552.5

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