Task: Question Answering
Input (English): Problem: a hall 36 m long and 15 m broad is to be paved with stones, each measuring 2 dm by 5 dm. the number of stones required is :
Options: ['a. 180', 'b. 1800', 'c. 5400', 'd. 18000', 'e. 1.8']
Output (English): c