There is a steady laminar blood flow in a tapered cylindrical vessel of circular cross-section, as shown in the figure below. Two cross-sections, labeled A and B in the figure, have radii 0.5 centimeter (cm) and 0.45 cm, respectively. If the average flow speed of the blood at cross-section A is 1 cm/second, the average flow speed at cross-section B is _________cm/second. (Round off to one decimal place). Assume blood to be an incompressible fluid.