The Bar graph given below shows the number of students (in hundreds) from two different schools who qualified in an exam in six different years (from year 2005 to 2010).
What was the respective ratio between the number of students who qualified in the exam from School-P in year 2005 to the number of students who qualified in the exam from School-Q in year 2008?
1
13 ∶ 18
2
17 ∶ 18
3
17 ∶ 19
4
13 ∶ 19