conversations.from: human
conversations.value: Frank spent 1/5 of his money to buy groceries. He then spent 1/4 of the remaining money to buy a magazine. If he had $360 left in his wallet, how much money did he have at first?
conversations.from: assistant
conversations.value: Let X be the money Frank had originally.
  Frank spent 1/5*X on groceries.
  Frank spent 1/4*(X-1/5*X) on a magazine.
  Frank has X - 1/5*X - 1/4*(X-1/5*X) = $360 left in his wallet.
  Multiplying through the parentheses, we get X - 1/5*X - 1/4*X + 1/20*X = $360.
  Combining like terms, we get 12/20*X = $360.
  Dividing both sides by 12/20, we get X = $600.