Task: Question Answering
Input (English): Problem: a man started driving at a constant speed , from the site of a blast , the moment he heard the blast . he heard a second blast after a time of 30 mins and 20 seconds . if the second blast occurred exactly 30 mins after the first , how many meters was he from the site when he heard the second blast ? ( speed of sound = 330 m / s ) 
Options: a ) 4200 , b ) 5400 , c ) 6600 , d ) 7800 , e ) 8900
Output (English): c