conversations.from: human
conversations.value: At a middle school, 20% of the students are in the band. If 168 students are in the band, how many students go to the middle school?
  Work out the solution step by step.
conversations.from: assistant
conversations.value: Let X be the number of students in the middle school. We know that X*20% = 168 students are in the band.
  So there are X = 168/20% = 840 students in the middle school.