Study the following table and answer the question:

Number of cars sold by dealers A, B, C, D & E during first six months of 2018.

The ratio of the total number of cars sold by dealer B in January. April and June to the total number of cars sold by dealers A and D in March is:

4 : 3

Car sold by B in january , April and June   :     Total cars sold by A & D in march

             ( 600 + 580 +  620 )                   :         ( 628 + 722 )

                         1800                              :              1350

                           4                                  :                3