Comprehension Passage
Direction: Question numbers 31 and 32 are based on the following diagram:
The following is a diagram of a certain college showing the number of students passed and failed during the years 2012 to 2015:
The percentage of passing of students in examination for all the years 2012 to 2015 combined together is _______.
1
50
2
57.14
3
60
4
70