Puzzle: If you choose an answer to this puzzle at random, what is the probability of a correct guess?

a) 25%
b) 50%
c) 60%
d) 25%

1. Explain why the above puzzle is a paradox.
2. By introducing a single decimal point in one of the choices - can you convert this paradox into a solvable problem?

Conspicuously absent from this problem is the question being answered.  All we have are three unique answers - 25%, 50%, and 60% - without knowing what they represent.

Assumption 1:  one of the three answers is correct.
Assumption 2:  There is an equal likelihood of either of the three being correct.

Thus, the probability of selecting the correct answer through random selection of A, B, C, or D is:  33%

Posted by hoodat on 2017-05-26 21:11:27