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 3.6 miles in the seventh 8 - minute interval , what was the average speed of the car , in miles per hour , in the first 8 minute interval ? 
Options: a ) 33 , b ) 36 , c ) 39 , d ) 42 , e ) 45
Output (English): e