conversations.from: human
conversations.value: Jessica's family is 300 km away from New York. If they are traveling at the rate of 50 km/h and stop to rest for 30 minutes every 2 hours, how long will it take them to reach New York?
conversations.from: assistant
conversations.value: Without stopping to rest they will arrive in 300/50= 6 hours.
  They need to stop to rest after every 2 hours except for the last 2 hour stretch of time, which is when they reach New York, so they rest (6/2)-1= 3-1 = 2 times.
  The time they spend resting is 2*30= 60 minutes or 1 hour.
  So they will arrive in 6+1= 7 hours.