Answer:
It will be better to produce all the units of Plain we can sell, then use any remaining machine hours to produce Fancy. This is because Plain, generated more contribution per hour than Fancy.
Step-by-step explanation:
We have to calculate the Contribution Margin per machine hours
This means check which product makes a better use of the scarse resourse
![(Plain\: CM)/(Plain \: Machine \: Hours ) = CM \: per \:Machine\:Hour\\\\ 80 / 2 = 40](https://img.qammunity.org/2020/formulas/business/college/okd6610rplfxx8ahi8eu3syflpbyorw2v3.png)
![(Fancy\: CM)/(Fancy\: Machine \: Hours ) = CM \: per \:Machine\:Hour\\\\ 93 / 3 = 31](https://img.qammunity.org/2020/formulas/business/college/d3otu9d6b10gic73azl8zy0q3ak3lfoz57.png)
It will be better to produce all the units of Plain we can sell, then use any remaining machine hours to produce Fancy