Futility Closet

Government Work

Posted in Puzzles by Greg Ross on November 25th, 2008

Andy is a lazy census taker. He sits in the doorway of his house and counts each pedestrian who walks by.

“That’s no way to do it,” says Bill. He leaves the house and walks up and down the street, counting each person he passes.

After an hour he returns to the house and the two compare totals. Was Bill right? Assume all pedestrians walk at the same speed.

(Answer)