Task: Question Answering
Input (English): Problem: john purchased 1375 large bottles at $ 1.75 per bottle and 690 small bottles at $ 1.35 per bottle. what was the approximate average price paid per bottle ?
Options: a. $ 1.62, b. $ 1.64, c. $ 1.68, d. $ 1.72, e. $ 1.76
Output (English): a