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Mining Engineering · Q10

Mine System Engineering

Engineering and GATE · Mining Engineering · question 10

Q10

In an opencast mine, dumpers arrive at a shovel location with an average arrival rate of 12 per/hour. The inter-arrival times of the dumpers follow an exponential distribution. The service times of the shovel also follow an exponential distribution with an average of 3 minute. The average waiting time of a dumper in the queue in minutes is

A.
2.7
B.
6
C.
4.5
Answer
D.
7.5

Answer: Option C

Solution

Answer: Option C
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