Numerical - Congestion period for given number of calls & average call duration

Q.  If a group of trunk is offered 1200 calls during the busy hour & 20 calls are lost along with the average call duration of about 7 min, then what would be the total duration of congestion period?
- Published on 18 Nov 15

a. 21.6 sec
b. 42.2 sec
c. 57.6 sec
d. 98.2 sec

ANSWER: 57.6 sec

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    Discussion

  • tekelebrhan   -Posted on 22 Jun 16
    difficult

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