Comprehension Passage
Directions : The following line graph shows the total number of students studying (UG + PG) and the number of students studying UG in five different colleges A, B, C, D and E.

Find the ratio between the number of students studying PG in college E to the number of students studying UG in college B.
1
3: 1
2
3: 4
3
4: 5
4
2: 3
5
5: 4