The Monty Hall problem is a well known brain teaser. Here is a variant.

You're on a game show, and you're given the choice of three boxes. Two boxes each contain $1000; the third contains $4000.

You pick one box and the host picks another. The host removes this box, which contains $1000, and adds $1000 to your box. He then offers you the choice to switch to the remaining box.

Do you switch, or stick with your original box?

The solution is correct, but the title of the comment states something that seems missleading to me.
It's not the $1K they put in the box, it's the $1K that they add to the box that makes the difference.
Anything less would make switching the better strattegy.

Edited on April 26, 2017, 3:18 am

Posted by TheKPAXian on 2017-04-26 03:16:44