Study the given bar graph and answer the question that follows.

The bar graph shows the exports of cars of types A and B (in ₹ million).

What is the ratio of the total exports of cars of type A in 2016 and 2018 to the total exports of cars of type B in 2015 and 2017?

23 : 21

Total exports of cars of type A in 2016 and 2018  :   Total exports of cars of type B in 2015 and 2017

 ( 275 + 300 )  :  ( 250 + 275 )

        575         :        525

          23         :         21