You have an empty 3-liter container, a full 5-liter container with 50 degrees water, and a full 6-liter container with 90 degrees water.
Can you manage to get some 72 degrees water?
fill 3 liter with 90 deg water
fill 6 liter with 50 deg water, is now 70 deg
fill 5 liter with 90 deg water from 3 liter, is now 74 deg
fill 6 liter with 74 deg water from 5 liter, is now 72 deg
Edited on September 29, 2004, 8:22 pm