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Mining Engineering · Q32

Mine System Engineering

Engineering and GATE · Mining Engineering · question 32

Q32

Workmen arrive at a mine workshop to receive tools for maintenance. The inter-arrival time of workmen at the service counter is exponentially distributed with an average time of 10 min. The service time at the counter is also distributed exponentially with a mean time of 6 min. The probability that there is a queue (more than one workman) at the service counter is,

A.
0.24
B.
0.36
Answer
C.
0.40
D.
0.60

Answer: Option B

Solution

Answer: Option B
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