conversations.from: human
conversations.value: Joe had 200 data points on his dataset. He then added 20% more data points to the dataset. If he reduced the data points by 1/4 of the total data points, calculate the total number of data points the dataset contains.
  Can you solve this problem?
conversations.from: assistant
conversations.value: When Joe added 20% more data points to the dataset, the data points in the dataset increased by 20/100*200 = 40 data points.
  The total number of data points increased to 200+40 = 240
  If he reduced the data points by 1/4 of the total data points, the data points reduced by 1/4*240 =60
  The total number of data points left in the dataset after Joe reduced the data points by 1/4 of the total data points is 240-60= 180