Question : The bar graph given below provides information about the quantity of salt produced by a company in 8 consecutive years. Study the information provided in the bar graph and answer the question that follows.
The average production of salt in 2001 and 2003 was exactly equal to the average production of salt in which of the following pairs of years?
Option 1: 2006 and 2007
Option 2: 2001 and 2005
Option 3: 2002 and 2007
Option 4: 2005 and 2006
Correct Answer: 2002 and 2007
Solution :
From the given bar graph,
Production of salt in 2001 and 2003 = 40 + 70 = 110000 tonnes
Production of salt in 2006 and 2007 = 50 + 80 = 130000 tonnes
Production of salt in 2001 and 2005 = 40 + 55 = 95000 tonnes
Production of salt in 2002 and 2007 = 30 + 80 = 110000 tonnes
Production of salt in 2005 and 2006 = 55 + 50 = 105000 tonnes
⇒ The average production of salt in 2001 and 2003 is exactly equal to the average production of salt in 2002 and 2007.
Hence, the correct answer is 2002 and 2007.
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