
A few years ago, this little brain-teaser was making the
rounds. Take a run at it, and let’s see how you do:
Three old ladies go to a hotel one evening, hoping to save money by sharing a room. The hotel manager charges each $20 for the night, though he knows the room is only worth $40. Shortly thereafter, the manager feels guilty that he has charged them too much, so he sends the bellboy to return $20 to the old ladies. On the way, the bellboy realizes that he cannot split $20 among three ladies, so he pockets $5 and hands them the remaining $15.
Here is the problem. The ladies paid $60 initially. Since they received $5 each, the net amount they paid for the room was $15 each, which adds up to a total of $45. The bellboy has $5 in his pocket, which if you add it to the $45 makes $50. Where is the other $10 that they paid the manager?
Now, if you’re normal, your instant reaction is, “This is
amazing … a hotel room for only $20!”