Question about my Internet speed? (See Details)?

[Daniel]

I did a speedtest from speedtest.net and it showed that my speed is 3.31 Mbps. Does that mean that when I download something, it downloads 3.31 megabytes per second? If that's true then shouldn't a 9.93 MB file download in exactly 3 seconds. So I am downloading Windows 8.1, which is 3.63 GB, so shouldn't that take about... 20 mins? (18.716616314199395770392749244713 minutes, to be accurate).

So why is it taking so long - it's only at 22% till now.
I just did the math; it takes 71 seconds for each percent to happen... if that #'s consistent, it'll 2h20m, two hours more than what should've been the case. And my service provider had promised like 10 Mbps.