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    Question

    The annual production of an article fluctuates. It

    consistently rises by 25% for two consecutive years, followed by a 20% decline in the third year. In the fourth year, production again increases by 12%. Starting from 2008, what is the approximate overall impact on the production of the article after four years?
    A 25% increase Correct Answer Incorrect Answer
    B 25% decrease Correct Answer Incorrect Answer
    C 40% increase Correct Answer Incorrect Answer
    D 35% decrease Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    SOLUTION: Let initially production of article was N Then, production after 4 years = N× = 1.4N Increased in production = 1.4N-N = 0.4N Increased percentage production = 0.4N/N ×100 = 40% Which means production of that article after 4 years will be increased by 40%.

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