Final answer:
Kelson should manufacture 40 pairs of regular model gloves, as that's the number of right-handed gloves available, which are the limiting reactants in this context.
Step-by-step explanation:
The question you're asking relates to the concept of limiting reactants in chemistry, which can also be applied to solving problems in a manufacturing context.
In your example with gloves, if you have 50 left-handed gloves (L-gloves) and 40 right-handed gloves (R-gloves), the maximum number of regular model glove pairs you can manufacture is limited by the glove in the smallest number, which are the right-handed gloves.
So, Kelson should manufacture 40 pairs of gloves because that's the number of right-handed gloves available. Any more, and there wouldn't be enough right-handed gloves to complete a pair, leaving you with excess left-handed gloves.