Task: Question Answering
Input (English): Problem: a man spend 1 / 5 of his salary on food, 1 / 10 of his salary on house rent and 3 / 5 salary on clothes. he still has $ 15000 left with him. find salary..
Options: a. $ 150000, b. $ 18000, c. $ 180000, d. $ 1800, e. none
Output (English): a