conversations.from: human
conversations.value: Solve the following math problem: Anna used four baking trays to bake cupcakes. Each tray has 20 cupcakes and each cupcake was then sold for $2. If only 3/5 of the cupcakes were sold and the rest were kept, how much did Anna earn from it?
conversations.from: assistant
conversations.value: Anna baked 4 x 20 = 80 cupcakes.
  She sold 80 x 3/5 = 48 cupcakes.
  Thus, she earned 48 x $2 = $96 from it.