# Here's a good brain puzzler:

#### Nathan G

##### New Member
If I choose an answer at random, what's the probability of getting it correct?

A) 25%

B) 0%

C) 50%

D) 25%

#### Englund

##### TS Contributor
Well, I am not sure what the percents means. But if there are four answers where one of them is right, the probability of getting the correct answer when choosing at random is 1/4.

#### TheEcologist

##### Global Moderator
Yeah, but there are two 1/4 in the answer hence one could argue 1/2, but since the answer 1/2 itself is only one of 4, choosing purely randomly would lead you back to a prob of 1/4.

It's a troll question

#### Nathan G

##### New Member
It's a troll question
I guess I owe you guys an apology. I'm sorry. I am actually interested if there is any way around the paradoxical nature of the question. Something so seemingly simple can have devastating implications. Does making a choice actually change the answer? If so, is there a convergence somewhere in between as the number of choices go to infinity? Please, don't pop any brain cells over it, I was just wondering if anyone knew off hand. To the professors out there, this would be truly diabolical to put on a quiz.