A Large Vat Is Continually Filled with a Viscous Liquid

Multiple Choice

A large vat is continually filled with a viscous liquid that flows from two equally long, cylindrical pipes, labeled A and B, onto a conveyer belt as shown in the drawing. The diameter of pipe B is 1.75 times larger than that of pipe A. What is the ratio of the average volume flow rate of the liquid exiting pipe B to that of the liquid exiting pipe A?

A) 1.87
B) 3.06
C) 1.32
D) 9.38
E) 4.33