conversations.from: human
conversations.value: Solve the math problem: 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?
conversations.from: assistant
conversations.value: 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