Task: Question Answering
Input (English): Problem: working at a constant rate , p can finish a job in 3 hours . q , also working at a constant rate , can finish the same job in 9 hours . if they work together for 2 hours , how many more minutes will it take p to finish the job , working alone at his constant rate ? 
Options: a ) 20 , b ) 30 , c ) 40 , d ) 50 , e ) 60
Output (English): a