How long does it take to download 10000GB on a 100Mb line?

To calculate the time it takes to download 10,000 GB on a 100 Mb line, first convert the download speed to gigabytes per second: 100 Mb equals 12.5 MB (megabytes) per second, or approximately 0.0125 GB per second. Therefore, downloading 10,000 GB would take about 10,000 GB ÷ 0.0125 GB/s = 800,000 seconds, which is roughly 9.26 days.