Search found 5 matches

by bellannaer
Wed Apr 21, 2010 12:56 am UTC
Forum: Logic Puzzles
Topic: Monty Hall Problem
Replies: 116
Views: 53318

Re: Monty Hall Problem

If Monty doesn't know where the car is, there are three possibilities with equal probability:
1. You picked the car.
2. Monty picked the car.
3. The car is behind the other door.

By the time you get to choose whether to switch your odds are 50/50.
by bellannaer
Tue Apr 20, 2010 6:24 pm UTC
Forum: Logic Puzzles
Topic: Given that you have a brother...
Replies: 41
Views: 7825

Re: Given that you have a brother...

It is slightly more likely that you are male.

Spoiler:
There is only one case where the gender of one sibling affects the gender of another, identical twins.
by bellannaer
Sat May 10, 2008 1:02 am UTC
Forum: Mathematics
Topic: Mathematical error in seasons of love
Replies: 21
Views: 4281

Re: Mathematical error in seasons of love

I'd say it depends on what kind of year you're talking about. If you're talking about it in an astronomical/scientific sense then yes it is about 365.25 days long. However, if you're talking about a calendar year, it is either 365 or 366 days long.
by bellannaer
Mon Mar 03, 2008 7:33 am UTC
Forum: Logic Puzzles
Topic: Pitchers
Replies: 9
Views: 2728

Re: Pitchers

Here's my solution:
Spoiler:
This works for cylindrical pitchers and I believe for all symmetrical pitchers where the top and bottom are the same diameter. Tilt the pitcher until the top of the water goes from the bottom corner to the top corner, you now have half a pitcher of water.
by bellannaer
Wed Feb 27, 2008 10:02 am UTC
Forum: Logic Puzzles
Topic: Cycles in an infinite plane of arrows
Replies: 8
Views: 2518

Re: Cycles in an infinite plane of arrows

I'm too lazy to do the actual work involved but I think the proof would essentially be:
Spoiler:
1. prove that there is no circuit smaller than x
2. prove that any circuit would have to have a smaller circuit inside it

Go to advanced search