Task: Question Answering
Input (English): Problem: machine a produces 100 parts twice as fast as machine b does . machine b produces 100 parts in 60 minutes . if each machine produces parts at a constant rate , how many parts does machine a produce in 6 minutes ? 
Options: a ) 20 , b ) 30 , c ) 40 , d ) 10 , e ) 16
Output (English): a