Task: Question Answering
Input (English): Problem: a pipe can empty 2 / 3 rd of a cistern in 12 mins. in 6 mins, what part of the cistern will be empty ?
Options: a. 2 / 3, b. 3 / 7, c. 4 / 9, d. 3 / 8, e. 1 / 3
Output (English): e