Task: Question Answering
Input (English): Problem: one hour after yolanda started walking from x to y , a distance of 60 miles , bob started walking along the same road from y to x . if yolanda â s walking rate was 5 miles per hour and bob â s was 6 miles per hour , how many miles had bob walked when they met ? 
Options: a ) 40 , b ) 25 , c ) 28 , d ) 30 , e ) 30.5
Output (English): d