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    Question

    During the first year the population of a village

    increased by 5% and during the second year it diminished by 5%. At the end of the second year its population was 47,880. What was the population at the beginning of the first year?
    A 45000 Correct Answer Incorrect Answer
    B 48000 Correct Answer Incorrect Answer
    C 43500 Correct Answer Incorrect Answer
    D 53000 Correct Answer Incorrect Answer

    Solution

    Let initial population = x After first year = x×1.05 After second year = x×1.05×0.95=x×0.9975 Given x×0.9975=47880 x=47880÷0.9975=48000

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