Task: Question Answering
Input (English): Problem: a car traveled 35 % of the way from town x to town y at an average speed of 35 mph . the car traveled at an average speed of v mph for the remaining part of the trip . the average speed for the entire trip was 50 mph . what is v in mph ? 
Options: a ) 45 , b ) 65 , c ) 55 , d ) 75 , e ) 85
Output (English): b