The given 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?
Answer & explanation
Correct answer: option 3
Average production of salt in 2001 & 2003 = \(\frac{40 + 70 }{2}\) = 55
Now , Lets solve one by one for each option .
1. 2006 & 2007
Average production of salt in 2006 & 2007 = \(\frac{50 + 80 }{2}\) = 65
2. 2001 & 2005
Average production of salt in 2001 & 2005 = \(\frac{40 + 55 }{2}\) = 47.5
3. 2002 & 2007
Average production of salt in 2002 & 2007 = \(\frac{30 + 80 }{2}\) = 55
4. 2005 & 2006
Average production of salt in 2005 & 2006 = \(\frac{55 + 50 }{2}\) = 52.5
So , Average production in 2002 & 2007 is same as average production in 2001 & 2003 .