Task: Question Answering
Input (English): Problem: working together , printer a and printer b would finish the task in 15 minutes . printer a alone would finish the task in 45 minutes . how many pages does the task contain if printer b prints 3 pages a minute more than printer a ? 
Options: a ) 125 , b ) 135 , c ) 145 , d ) 155 , e ) 165
Output (English): b