Question

An internet download speed is 4.2 MB/S (constant). How long will it take to download a 30 GB file?

And with 900 KB/S?

Answer 1

Time with 4.2MB/S speed = 7314.3 seconds

Time with 900 KB/S speed = 34952.5 seconds

Explanation:

Given that:

Internet download speed = 4.2 MB/S

File to download = 30 GB

1 GB = 1024 MB

30 GB = 30*1024 = 30720 MBS

Time required =

Time required = 7314.3 seconds

With 900 KB/S

1 MB = 1024 KB

30720 MB = 30720 * 1024 = 31457280 KBS

Time =

Hence,

Time with 4.2MB/S speed = 7314.3 seconds

Time with 900 KB/S speed = 34952.5 seconds

Answer 2

Time with 4.2MB/S speed = 7314.3 seconds

Time with 900 KB/S speed = 34952.5 seconds

Explanation:

Given that:

Internet download speed = 4.2 MB/S

File to download = 30 GB

1 GB = 1024 MB

30 GB = 30*1024 = 30720 MBS

Time required =
`(30720)/(4.2)`

Time required = 7314.3 seconds

With 900 KB/S

1 MB = 1024 KB

30720 MB = 30720 * 1024 = 31457280 KBS

Time =
`(31457280)/(900)=34952.5\ seconds`

Hence,

Time with 4.2MB/S speed = 7314.3 seconds

Time with 900 KB/S speed = 34952.5 seconds