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    Question

    Population of a town increases by 10% every year. If the

    population of the town two years from now will be 24,200, then find the current population of the town.
    A 20,000 Correct Answer Incorrect Answer
    B 60,000 Correct Answer Incorrect Answer
    C 30,000 Correct Answer Incorrect Answer
    D 25,000 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let, the current population of the town be ‘x’.

    ATQ,

    So, the population of the town 2 years hence = 1.10 × 1.10 × x = 24200

    Or, x = 24200 × (1/1.10) × (1/1.10)

    So, x = 20,000

    Therefore, current population of the town = x = 20,000

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