Suppose that the production Q (in gallons of paint) of a paint manufacturer can be modeled by Q = 140K1/2L1/2, where K is the company's capital expenditures in thousands of dollars and L is the size of the labor force (in hours worked). Find ∂Q/∂K and ∂Q/∂L when capital expenditures are $250,000 and the labor hours are 1225. Interpret each answer.