Question

    The given bar graph shows the export of jute by a

    company over the years 2011 to 2017. Which of the following pairs of years has the maximum percentage of decrease in export?
    A 2014-2015 Correct Answer Incorrect Answer
    B 2015-2016 Correct Answer Incorrect Answer
    C 2012-2013 Correct Answer Incorrect Answer
    D 2011-2012 Correct Answer Incorrect Answer

    Solution

    To find the difference in each pair of years, 2011 - 2012 = 11.4 - 10.8 = 0.6 2012 - 2013 = 9.5 - 11.4 = - 1.9 2013 - 2014 = 9.9 - 9.5 = 0.4 2014 - 2015 = 7.8 - 9.9 = - 2.1 2015 - 2016 = 5.2 - 7.8 =  - 2.6 2016 - 2017 = 6.5 - 5.2 = 1.3 Percentage Decrease = (Old Value - New Value)/Old Value x 100 From the above, we know that there was a decrease in export in the years 2012 - 2013, 2014 - 2015 and 2015 - 2016. In all these years, 2015 - 2016 has the maximum amount of decrease = -2.6/5.2 x 100 = 50% ∴ The maximum percentage of decrease in export was in the year 2015 - 2016.

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