Kiaan is doing home delivery of newspapers in his neighborhood of 200 homes. After an hour of work, he has distributed newspapers to 2/5 of the homes. After another 2 hours of working, he realizes he has distributed newspapers to 60 percent of the remaining homes. How many homes does he still need to distribute the newspapers to? Let's think first. Chain of thought:
After the first hour of work, he has distributed newspapers to 2 / 5 * 200 = 80 homes. The number of homes that still need newspapers is 200 - 80 = 120. Two hours later, the number of homes he has distributed newspapers to is 60 / 100 * 120 = 72 homes. The number of homes he still needs to distribute newspapers to is 120 - 72 = 48 homes.
Therefore, the answer is 48.