Comprehension Passage
Direction: Following charts represents the students in the different departments of engineering, i.e. mechanical, electrical, civil and computer science in a college. The total number of students in the college is 1200. Study the chart carefully and answer the following questions.
If 120 students from mechanical department transfers to the computer science department, then find the ratio of the students in mechanical to computer science department.
1
32 : 117
2
13 : 40
3
37 : 120
4
33 : 117
5
1 : 3