Task: Question Answering
Input (English): Problem: jerry travels 8 miles at an average speed of 40 miles per hour , stops for 13 minutes , and then travels another 20 miles at an average speed of 60 miles per hour . what is jerry ’ s average speed , in miles per hour , for this trip ? 
Options: a ) 48 , b ) 42.5 , c ) 44 , d ) 50 , e ) 52.5
Output (English): a