Races and Games Practice Test 2 with solutions

At the start of a game of cards, J and B together had four times as much money as T, while T and B together had three times as much as J.
At the end of the evening, J and B together had three times as much money as T, while T and B together had twice as much as J. B lost Rs 200.
What fraction of the total money did J win/lose?