Study the following table and answer the equation:
Number of cars sold by dealers A, B, C, D and E during first six months of 2018.

Q:

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:

• 1
  8:9
• 2
  7:5
• 3
  4:3
• 4
  10:9