conversations.from: human
conversations.value: Sally is selling boxes of crackers for her scout troop's fund-raiser. If she sells 50% more on Sunday than she sold on Saturday, then she'll have sold a total of 150 boxes on the two days. How many boxes did she sell on Saturday?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: Let S be the number of boxes sold on Saturday.
  S+1.5S=150
  2.5S=150
  S=60
  Sally sold 60 boxes on Saturday.