您好，设价格为p,则q=500-2P利润=(500-2P)*p-10000-100*(500-2P)=500p-2p^2-10000-50000+200p=-2p^2+700p-60000求导有,(利润)'=-4p+700=0时利润最大,即p=175时有最大利润,Q=150为-2×175^2+700×175-60000= 1250
