A warehouse has 10 unlabelled rows of pallets. Each row of pallets contains thousands of cell phones destined for different countries. Each 100 gram cell phone is exactly the same except for those in the row destined for Japan, which have a “special” 2 gram chip encased within each phone to make sure it works on the Japanese networks.
How can the warehouse manager make sure the right phones go to Japan in the quickest time possible? All the warehouse manager has at his disposal is a digital balance.