Task: Question Answering
Input (English): Problem: a cistern can be filled by a tap in 6 hours while it can be emptied by another tap in 12 hours. if both the taps are opened simultaneously, then after how much time will the cistern get filled ?
Options: a. 5.2 hrs, b. 2.9 hrs, c. 12 hrs, d. 7.2 hrs, e. 1.4 hrs
Output (English): c