Given the task definition and input, reply with output. The task is to generate the correct answer for a given math problem.

Problem: one computer can upload 100 megabytes worth of data in 2 seconds . two computers , including this one , working together , can upload 1300 megabytes worth of data in 10 seconds . how long would it take for the second computer , working on its own , to upload 100 megabytes of data ?
6.6