|
|
|
|
Brain Teaser - 3 Doors 1 Car
Back to the homepage
|
| Views: 2425 |
Report
|
|
There are 3 closed doors in front of you and behind one of those doors there is a car, but you're not certain which door it is. You are asked to pick 1 of the 3 doors, but it will not be opened yet. If you pick correctly, you win the car. After your selection, of the two remaining closed doors the one without the car is revealed to you. So now before you are two closed doors and one open door without the car. In the charitable interest of the game, you are then given the option of changing your selection (i.e. to the other closed door). The question is as follows: Do you switch? (Yes, No, or Doesn't Matter). The answer and explanation will be explained in a few days. And if you know the answer, please don't spoil it for others.
About this poster:
Posted by:
Scuba
(male, late-30s)
(Posted 10/13/05)
|
|
Resource Links:
Free (relevant links only)
|
|
Responses (7)
|
Bopper
(10/13):
Great Post. These are a blast!
(report)
|
|
UESGal
(10/13):
Can't you walk through the open door to the car?
(report)
|
|
cstraw
(10/13):
"U2" has a concert that starts in 17 minutes and they must all cross a bridge to get there. All four men begin on the same side of the bridge.
You must help them across to the other side. It is night. There is one flashlight. A maximum of two people can cross at one time. Any party who crosses, either 1 or 2 people, must have the flashlight with them. The flashlight must be walked back and forth, it cannot be thrown, etc. Each band member walks at a different speed. A pair must walk together at the rate of the slower man's pace:
Bono: - 1 minute to cross
Edge: - 2 minutes to cross
Adam: - 5 minutes to cross
Larry: - 10 minutes to cross
For example: if Bono and Larry walk across first, 10 minutes have elapsed when they get to the other side of the bridge. If Larry then returns with the flashlight, a total of 20 minutes have passed and you have failed the mission.
Notes: There is no trick behind this. It is the simple movement of resources in the appropriate order. There are two known answers to this problem.
This is based on a question Microsoft gives to all prospective employees. Microsoft expects you to answer this question in under 5 minutes!
(report)
|
|
cstraw
(10/13):
Scuba, you're just the BEST!
(report)
|
|
Scuba
(10/13):
CSTRAW: Do I sense some sarcasm?
(report)
|
|
TicalBits
(10/14):
wow, smart and perceptive. You are the total package!
(report)
|
|
Anonymous
(10/16):
This ole chestnut has been argued for years. Still it ROCKS!!!!
(report)
|
Related Posts
|
|
Responses (1)
|
Scuba
(10/13):
CSTRAW: It took me 30 seconds to figure this out - assuming I was able to get all four people across in 17 min (the last one arrived on the 17th minute). The question is, can you solve the the teaser I posted?
(report)
|
|
|
|
|
