Task: Question Answering
Input (English): Problem: a dishonest person wants to make a profit on the selling of milk. he would like to mix water ( costing nothing ) with milk costing 33 $ per litre so as to make a profit of 70 % on cost when he sells the resulting milk and water mixture for 36 $. in what ratio should he mix the water and milk ?
Options: a. 1: 120, b. 67: 120, c. 67: 8, d. 8: 120, e. 1: 2
Output (English): b