HardMath and Logic
3 doors: Heaven, 1-day Hell, 2-day Hell. Avg days?
Riddle
3 doors: Heaven, 1-day Hell, 2-day Hell. Avg days?
Choose an answer
A.1 day
B.2 days
C.5 days
D.3 days
Hint: It's a word with 4 letters, starting with "3".
Answer
3 days
Why this is the answer
E = 1/3(0) + 1/3(1+E) + 1/3(2+E). Solving for E: E = 1 + 2/3E -> 1/3E = 1 -> E = 3.
This riddle is filed under Expert Riddles for Adults and rated Hard.
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