A 9KB file is transferred over some connection at 1024 bits per second. Determine how many seconds faster you can transfer

A 9KB file is transferred over some connection at 1024 bits per second. Determine how many seconds faster you can transfer the same file over another connection at a speed of 1536 bits per second.

Let’s determine the transmission time through the first connection:
9 KB / 1024 bits per second = (9 * 1024 * 8 bits) / (1024 bits per second) = 72 seconds.
Transfer time through the second connection:
9 KB / 1536 bits per second = (9 * 1024 * 8 bits) / (1536 bits per second) = 48 seconds.
Therefore, the second connection can transfer the file 72 – 48 = 24 seconds faster.

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