Data transfer rate 256000 bps. How many seconds will it take to transfer a 625KB file over this connection?

Let’s convert 625 Kbytes to bits:
625KB = 5120000 bits;
Let S = 5120000 bits, and V = 256000 bit / s, then by the formula (t = S / V) we will find the time:
t = 5120000 bit / 256000 bit / s = 20 s



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