conversations.from: human
conversations.value: Some students want to buy pencils from a stationery shop. The price of one pencil is 20 cents. Tolu wants 3 pencils, Robert wants 5 pencils and Melissa wants 2 pencils. How much (in dollars) will the students spend altogether at the stationery shop?
  Give me a detailed solution.
conversations.from: assistant
conversations.value: The three students want a total of 3+2+5 = 10 pencils
  Each pencil cost 20 cents so 10 pencils cost 20*10 = 200 cents
  100 cents make a dollar so 200 cents make 200/100 = 2 dollars