MediumMath and Logic
Pick 1 of 3. Empty removed. Do you switch?
Riddle
Pick 1 of 3. Empty removed. Do you switch?
Choose an answer
A.No
B.Only if you feel lucky
C.Switching loses odds
D.Yes
Hint: It's a word with 3 letters, starting with "Y".
Answer
Yes
Why this is the answer
Your initial pick had a 1/3 chance. The remaining 2/3 chance is now concentrated in the one unopened envelope the interviewer didn't discard.
This riddle is filed under Math Riddles and rated Medium.