The following table shows the number of units of product produced and sold by a company over the course of six years.

Q:

Find the ratio between the total number of units sold in 2013 and 2015 and the number of units produced in 2015 and 2016?

• 1
  14 : 19
• 2
  29 : 38
• 3
  3 : 4
• 4
  7 : 9