Task: Question Answering
Input (English): Problem: one computer can upload 100 megabytes worth of data in 4 seconds . two computers , including this one , working together , can upload 1300 megabytes worth of data in 20 seconds . how long would it take for the second computer , working on its own , to upload 100 megabytes of data ? 
Options: a ) 6 , b ) 2.5 , c ) 9 , d ) 11 , e ) 13
Output (English): b