Task: Question Answering
Input (English): Problem: a 50 ml after - shave lotion at 30 % alcohol is mixed with 30 ml of pure water. what is the percentage of alcohol in the new solution ?
Options: a. 16.75 %, b. 17.75 %, c. 18.75 %, d. 19.75 %, e. none of these
Output (English): c