Task: Question Answering
Input (English): Problem: a man is walking at a speed of 10 km per hour . after every kilometre , he takes rest for 7 minutes . how much time will be take to cover a distance of 7 kilometres ? 
Options: a ) 80 min . , b ) 70 min . , c ) 84 min . , d ) 55 min . , e ) none of these
Output (English): c