conversations.from: human
conversations.value: Venny spent $15000 on a used car which cost 40% of the original price. What was the original price of the car?
  Give me a detailed solution.
conversations.from: assistant
conversations.value: Let x be the original price of the car.
  Then 40% * x = $15000
  Thus x = $15000 / 0.4 = $37500