Task: Question Answering
Input (English): Problem: donovan and michael are racing around a circular 500 - meter track . if donovan runs each lap in 45 seconds and michael runs each lap in 40 seconds , how many laps will michael have to complete in order to pass donovan , assuming they start at the same time ? 
Options: a ) 9 , b ) 10 , c ) 11 , d ) 12 , e ) 13
Output (English): a