Study the following bar chart and answer the questions carefully.

Q:

What is the approximate difference between the average sales turnover of all the companies put together between the years 2001 - 2002 and 2002 - 2003 ?

• 1
  133.45
• 2
  142.48
• 3
  117.6
• 4
  115.25
• 5
  None of these