Directions:  Study the bar-graph given below & answer the questions.
Pie-chart given below shows the percentage distribution of total no. of boys in six different Schools.
Total Boys in all schools together = 6400

Q:

If number of boys in school A and school D together is 2/5 th of the total students in both schools then find difference of girls in school A and school D?

• 1
  820
• 2
  680
• 3
  520
• 4
  Cannot be determined
• 5
  None of these