Task: Question Answering
Input (English): Problem: 5 is added to a certain number, the sum is multiplied by 7, the product is divided by 5 and 5 is subtracted from the quotient. the remainder left is half of 66. what is the number ?
Options: a. 21, b. 20, c. 22, d. 30, e. 45
Output (English): c