The given table represents the sale (in thousands) of cars by four companies A, B. C and D in six years. Study the table and answer the question that follows.

What is the ratio of the total number of cars sold by companies A, B and D in 2017 to the total number of cars sold by all four companies in 2018?

9 : 14

Car sold by A , B & D in 2017  :   Car sold by all four companies in 2018

  ( 52 + 53 + 75 )   :   ( 63 + 67 + 76 + 74 )

          180             :              280

           9               :               14