Data interpretation shortcut technique steps
By looking at the above diagram we can say that the length of the bars of company A compared to company B has increased only in 2009 and 2010.
There is increase in production of company A only in the years 2009 and 2010.
We shall compare only 2009 and 2010 bars and ignore others
Number of parts of A=7
Number of parts of B=6
Number of parts of A=8
Number of parts of B=5
Ans Percentage increase in production of company A to that of company B was minimum in 2009 as it has increased only by 1 part.
Another way of comparing is to just count the number of parts that is extra.
Example In 2009 by looking at the bars we can say that company A has 1 part more than company B.
In 2010 by looking at the bars we can say that company A has 3 parts more than company A.
So Percentage increase in company A is minimum in the year 2009.