conversations.from: human
conversations.value: I'm completely lost with this math problem: In my school, the number of students has increased by 20% this year. The number of students this year is 960. How many students were there last year?
  Can you give me a hand?
conversations.from: assistant
conversations.value: Let X be the number of students last year. The number of students this year is X+X*20% = 960
  Combining like terms, we get X*1.2 = 960
  Dividing both sides by 1.2, we get X = 800 students.