If a file consisting of 50,000 characters takes 40 seconds to send, then the data rate is __________.
(A) 1 kbps
(B) 1.25 kbps
(C) 2 kbps
(D) 10 kbps
50,000 character takes 40 seconds ie 50,000 * 8 = 40 seconds. (each character is of 8 bits) In one second → (50,000 * 8)/40 bits / second. 10,000 bits / second. ie. 10 Kbps.
So, option (D) is correct.
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