Cars must be produced with 4 wheels and 2 doors for each car. For example, if you have 5 wheels and 2 doors then you can only produce one car (and you have one extra wheel that gets wasted). Let Q be the number of cars, W be the number of wheels, and D be the number of doors. The price of one wheel is Pw and the price of one door is Pd.

a.) Determine three (W,D) points on the Q=10 isoquant . (What combination of inputs leads to the production of 10 cars.