121.

Study the following bar diagram carefully and answer the following question.
  The number of the production of electronic items (T Vs and LCDs) in a factory during the period from 2009 to 2013.

The difference between averages of production of TVs and LCDs from 2009 to 2012 is

• 700

• 800

• 900

• 600

Study the following bar diagram carefully and answer the following question.
  The number of the production of electronic items (TVs and LCDs) in a factory during the period from 2009 to 2013.

The ratio of production of TVs in the years 2009 and 2010 is

• 7 : 6

• 6 : 7

• 2 : 3

• 3 : 2

Study the following bar diagram carefully and answer the following question.
  The number of the production of electronic items (TVs and LCDs) in a factory during the period from 2009 to 2013.

The total number of production of electronic items is maximum in the year

• 2011

• 2013

• 2009

• 2010