Each week, we post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for two free Manhattan Prep GRE Strategy Guides.

The inverted cone pictured below is initially filled to height

h_{0}with a volume of 1,000Ï€of water. 60 percent of the water is drained from the cone and the water level falls to heighth_{1}. For a cone with radiusrand heighth, volume = .Note: Figure Not Drawn to Scale

Quantity A

Quantity B

0.4

See the answer choices and submit your pick over on our Challenge Problem page.