conversations.from: human
conversations.value: I would love to understand how to solve this problem: Jerome is taking a 150-mile bicycle trip. He wants to ride 12 miles for 12 days. How long will he ride on the 13th day to finish his goal?
  Can you explain?
conversations.from: assistant
conversations.value: Jerome rides a total of 12 x 12 = 144 miles in 12 days.
  So, he will ride 150 - 144 = 6 miles on the 13th day to finish his goal.