Question
The line graph shows the number of shirts sold by a shop from May to October in 2012.


  1. What was the average number of shirts sold per month from May to October in 2012?
  2. The total number of shirts sold for the same period from May to October in 2011 was 640. Find the percentage decrease in the total number of shirts sold for the same period from 2011 to 2012
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(a)

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(b)

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The line graph shows the number of shirts sold by a shop from May to October in 2012.


  1. What was the average number of shirts sold per month from May to October in 2012?
  2. The total number of shirts sold for the same period from May to October in 2011 was 640. Find the percentage decrease in the total number of shirts sold for the same period from 2011 to 2012