Following question:

Let qA be demand for product A and suppose that qA = qA (PA.PB ) , so that qA is the quantity of A demanded when the price per unit of A is PA and the price per unit of product B is pp. The partial elasticity of demand for A with respect to PA, denoted noA, is defined as npA = (PA/ QA ) (daA / OPA ) . The partial elasticity of demand for A with respect to Pg, denoted nog, is defined as pe = (PB / qA) (dqA / PB ) . Roughly speaking, pA is the ratio of a percentage change in the quantity of A demanded to a percentage change in the price of A when the price of B is fixed. Similarly, no can be roughly interpreted as the ratio of a percentage change in the quantity of A demanded to a percentage change in the price of B when the price of A is fixed. Find noA and "pg when qa = 2000/ (PA PB ) . PA = 5, and PB = 25. pA = 0 npB = (Simplify your answers.)