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Mining Engineering · Q19

Mine System Engineering

Engineering and GATE · Mining Engineering · question 19

Q19

A queue of trucks at a crusher plant hopper is known to be M/M/1 queue. The probability that there is no truck to unload is 0.3. Due to rains the mean service time at the hopper is increased by 30%. As a consequence, the expected number of trucks in the queuing system (including the one possibly unloading) becomes

A.
10
Answer
B.
12
C.
14
D.
16

Answer: Option A

Solution

Answer: Option A
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