Study the given bar graph and answer the question that follows.
The bar graph shows the exports of cars of type A and B (in Rs. millions) from 2014 to 2018.
In which year were the exports of cars of type A Rs. 55 million less than the average exports (per year) of cars of type B over the five years?
1
2015
2
2016
3
2017
4
2014