Task: Question Answering
Input (English): Problem: the average speed of a car decreased by 3 miles per hour every successive 8 - minutes interval . if the car traveled 4.4 miles in the fifth 8 - minute interval , what was the average speed of the car , in miles per hour , in the first 8 minute interval ? 
Options: a ) 45 , b ) 48 , c ) 51 , d ) 54 , e ) 57
Output (English): a