Comprehension Passage
Directions: Read the given graph carefully and answer the following questions.
The given graph shows the number of students enrolled in different courses in a college.
What is the ratio of the number of economics honours students in 2010 to that of in 2012?
1
2 : 3
2
2 : 4
3
3 : 5
4
3 : 4
5
2 : 7