If half of the number of employees who got promoted from the IT department were males, what was the approximate percentage of males who got promoted from the IT department?

What is the average number of candidates appearing for the entrance exam from State D in the years 2007, 2008 and 2009 together?

What is the total number of candidates clearing the entrance exam from States E and F together in the year 2006?

What is the number of candidates not clearing the entrance exam from State A in the year 2007?

In which year did the highest number of candidates clear the entrance exam from State D?

What is the respective ratio of the total number of candidates clearing the entrance exam from State B in the year 2004 to 
those clearing the entrance exam from State C in the same year?