Author |
Topic Search Topic Options
|
YesFan72
Forum Senior Member
Joined: November 25 2007
Location: USA
Status: Offline
Points: 3241
|
Posted: July 31 2008 at 07:31 |
I decided to post another logic puzzle on here.
A milkman has two empty jugs: a three gallon jug and a five gallon jug. How can he measure exactly one gallon without wasting any milk?
|
|
|
Vompatti
Forum Senior Member
VIP Member
Joined: October 22 2005
Location: elsewhere
Status: Offline
Points: 67407
|
Posted: July 31 2008 at 07:44 |
Easy: He fills the bigger jug. Then he pours three gallons from the bigger jug to the smaller one. Then he drinks the three gallons from the smaller jug. Then he pours the two gallons from the bigger jug to the smaller one. Then he fills the bigger jug. Then he pours one gallon from the bigger jug to the smaller one. Then he drinks the three gallons from the smaller jug. Then he pours three gallons from the bigger jug to the smaller one. Then he drinks the three gallons from the smaller jug. Now there's one gallon in the bigger jug, nothing in the smaller jug, and nine galllons in the milkman.
Edited by Vompatti - July 31 2008 at 07:44
|
|
YesFan72
Forum Senior Member
Joined: November 25 2007
Location: USA
Status: Offline
Points: 3241
|
Posted: July 31 2008 at 07:47 |
Vompatti wrote:
Easy: He fills the bigger jug. Then he pours three gallons from the bigger jug to the smaller one. Then he drinks the three gallons from the smaller jug. Then he pours the two gallons from the bigger jug to the smaller one. Then he fills the bigger jug. Then he pours one gallon from the bigger jug to the smaller one. Then he drinks the three gallons from the smaller jug. Then he pours three gallons from the bigger jug to the smaller one. Then he drinks the three gallons from the smaller jug. Now there's one gallon in the bigger jug, nothing in the smaller jug, and nine galllons in the milkman.
|
There is also a simpler way to do it without the milkman consuming milk.
|
|
|
Vompatti
Forum Senior Member
VIP Member
Joined: October 22 2005
Location: elsewhere
Status: Offline
Points: 67407
|
Posted: July 31 2008 at 07:49 |
The milkman holds the nine gallons in his mouth and then spits them in bottles or something?
|
|
YesFan72
Forum Senior Member
Joined: November 25 2007
Location: USA
Status: Offline
Points: 3241
|
Posted: July 31 2008 at 07:51 |
First, fill the three gallon jug. Pour that into the five gallon jug. Fill the three gallon jug again. Using that jug, fill the five gallon jug. There will be one gallon left over in the three gallon jug.
|
|
|
Vompatti
Forum Senior Member
VIP Member
Joined: October 22 2005
Location: elsewhere
Status: Offline
Points: 67407
|
Posted: July 31 2008 at 07:57 |
Oh.
|
|
Vompatti
Forum Senior Member
VIP Member
Joined: October 22 2005
Location: elsewhere
Status: Offline
Points: 67407
|
Posted: September 02 2008 at 17:57 |
But how does the milkman know he has a three gallon jug and a five gallon jug? And even if he did know, how would he know that the jugs remain the same size when filled with milk?
|
|
npjnpj
Forum Senior Member
Joined: December 05 2007
Location: Germany
Status: Offline
Points: 2720
|
Posted: September 04 2008 at 04:44 |
If there are three people in a lift and when it stops, five of them get out, then two have to get back in so that it's empty.
|
|
Vompatti
Forum Senior Member
VIP Member
Joined: October 22 2005
Location: elsewhere
Status: Offline
Points: 67407
|
Posted: September 15 2008 at 15:35 |
What if the lift can only hold ±3 people? Wouldn't it have crashed before the five people got out?
|
|
progaeopteryx
Prog Reviewer
Joined: June 03 2005
Location: Refrigerator
Status: Offline
Points: 3613
|
Posted: September 15 2008 at 20:50 |
What's a lift?
|
|
npjnpj
Forum Senior Member
Joined: December 05 2007
Location: Germany
Status: Offline
Points: 2720
|
Posted: September 16 2008 at 04:34 |
sorry, elevator, as in face-elevator
|
|
Vompatti
Forum Senior Member
VIP Member
Joined: October 22 2005
Location: elsewhere
Status: Offline
Points: 67407
|
Posted: September 16 2008 at 10:48 |
How many gallons of apples can a milkman put in a face-lift?
|
|
Donate monthly and keep PA fast-loading and ad-free forever.