The given bar graph shows the number of students of two schools over a period of six years.

In the bar graph, in which year is the sum of the students from schools A and B taken together, the minimum?

2010

Let's check one by one for each option ,

1. 2010

Sum of  students from school A & school B = 500 + 600 = 1100

2. 2013 1230

Sum of students from school A & school B = 750 + 480 = 1230

3. 2011

Sum of students from school A & school B = 700 + 750 = 1450

4. 2012

Sum of students from school A & school B = 900 + 500 = 1400

So , Sum is minimum for year 2010 i.e. 1100