What is the average number of candidates appearing for the entrance exam from state D in the years 2007, 2008 and 2009 together?
The number of candidates appearing for three different entrance exams are in the ratio 4:5:6. For the next academic year, there is a proposal to increase the number of candidates appearing for these exams by 40%, 60% and 85% respectively. What will be the ratio of the number of candidates appearing for the entrance exams in the next academic year?