A terminal multiplexer has six 1200 bps terminals and ‘n’ 300 bps terminals…
2014
A terminal multiplexer has six 1200 bps terminals and ‘n’ 300 bps terminals connected to it. If the outgoing line is 9600 bps, what is the value of n ?
- A.
4
- B.
8
- C.
16
- D.
28
Attempted by 204 students.
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Correct answer: B
Step 1: Compute the total rate used by the six 1200 bps terminals: 6 × 1200 = 7200 bps.
Step 2: Let n be the number of 300 bps terminals. The total outgoing rate is 7200 + 300n, which must equal 9600 bps.
Step 3: Solve 7200 + 300n = 9600 ⇒ 300n = 2400 ⇒ n = 2400 ÷ 300 = 8.
Answer: n = 8.