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      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 cityย 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 ร— 0.80 ร— 1.30 = 20800

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