Comprehension Passage
Directions: The following graph represents number of voters participating in election campaign from 6 different cities.
What is the ratio of the number of voters participating in the election campaign from cities M, N and O together in the year 2017 to the number of voters participating in the election campaign from cities P, Q and R together in the same year?
1
13 : 14
2
14 : 13
3
17 : 18
4
18 : 17