M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:

A can is filled from above with a round faucet whose radius is 1 cm. The water flows out of the faucet at a rate of 0.5 m/s with a volume-flow rate of 150 mL/s. The level of liquid in the can remains constant as it is drained from a hole with a radius of 2 cm. What is the volume-flow rate of the draining hole?

A

75 mL/s

B

150 mL/s

C

300 mL/s

D

√150 mL/s