New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    The population of a city is decreased by 20% in the

    first year and then increased by 30% in the second year. Find the population of the city at the end of the second year, if two years ago the population was 20,000.
    A 15525 Correct Answer Incorrect Answer
    B 20800 Correct Answer Incorrect Answer
    C 15609 Correct Answer Incorrect Answer
    D 17200 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Required population = 20000 × 0.80 × 1.30 = 20800

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