/ubbthreads/images/graemlins/confused.gif Ok,
you fill the 5 gal. jug up then dump that into the 3 gal. jug.
This leaves 2 gal. in the 5 gal jug.
Empty the 3 gal.
Then put the 2 gal. remaining in the 5 gal jug into the 3 gal jug leaving 1 gal of open space (in the three gallon jug).
Fill the 5 gal. jug and then use it to fill the remaining 1 gal in the 3 gal jug. This leaves exactly 4 gallons /ubbthreads/images/graemlins/grin.gif.
Math /ubbthreads/images/graemlins/smiliesmack.gif : 5-3=2 3-2=1 5-1=4
I bet you thought no one would figure this out /ubbthreads/images/graemlins/ooo.gif
You may all /ubbthreads/images/graemlins/bowingsmilie.gif to me now LOL /ubbthreads/images/graemlins/laugh.gif.