Comprehension Passage
Directions: Read the following table carefully and answer the questions given below.
The following table shows the total number of students in four classes who appeared in the examination, the percentage of students who passed in every class, the ratio between boys and girls and the percentage of boys passed out of total students passed the examination in a class.
| Class | Appeared students | Percentage of students passed | Total Boys : Total Girls | Percentage of Boys passed out of Total students passed |
| IX | 200 | 80% | 2 : 3 | 40% |
| X | 400 | 90% | 1 : 1 | 50% |
| XI | 625 | 80% | 3 : 2 | 60% |
| XII | 630 | 60% | 4 : 3 | 50% |
What is the average number of students passed from the class IX, class X and class XI in the exam?
1
330
2
320
3
340
4
440
5
None of these