conversations.from: human
conversations.value: In a conference room, 40 chairs with a capacity of 2 people each were arranged in rows in preparation for the board meeting of a company, whose number of members was the same as the chairs' capacity. If 2/5 of the chairs were not occupied, and the rest each had two people, calculate the number of board members who did attend the meeting.
  How to solve this?
conversations.from: assistant
conversations.value: The total capacity of the 40 chairs was 40*2=80 people.
  If 2/5 of the chairs were unoccupied, 2/5*80=32 people missed the board meeting since the number of members was the same as the chair's capacity.
  The number of board members who attended the meeting was 80-32=48