Answer:
Contribution margin per production hour
Product X = $12
Product Y = $15
Explanation:
Part 1
Contribution margin per production hour
Contribution margin per production hour = Contribution ÷ Time to produce one product
Therefore,
Product X =  $6 ÷ 0.5
         = $12
Product Y =  $5 ÷ 0.33
         = $15
Part 2
The Demand Units of Product X and Product Y are missing so the calculation of profitable sales mix is impossible.
This mix would have been calculated by :