Task: Question Answering
Input (English): Problem: every day daniel drives 60 miles back from work. on sunday, daniel drove all the way back from work at a constant speed of x miles per hour. on monday, daniel drove the first 32 miles back from work at ( 2 x ) miles per hour, and the rest of the way at ( x / 2 ) miles per hour. the time it took daniel to drive back from work on monday is longer than the time it took him to drive back from work on sunday by what percent ?
Options: a. 10 %, b. 20 %, c. 30 %, d. 40 %, e. 50 %
Output (English): b