conversations.from: human
conversations.value: A special school has a deaf-student population 3 times its blind-student population. If there are 180 students in total, how many blind students are there?
conversations.from: assistant
conversations.value: Let the number of blind students be x.
  The number of deaf students will then be 3*x = 3x students.
  The total number of students is x + 3x = 180 students.
  Combining like terms gives 4x = 180.
  So the value of x is 180/4 = 45.