Multiple Choice
At an automatic car wash,cars arrive randomly at a rate of 7 every 30 minutes.The car wash takes exactly 4 minutes (this is constant) .On average,how long would each driver have to wait before receiving service?
A) 28 minutes
B) 32 minutes
C) 17 minutes
D) 24 minutes
E) None of the above
Correct Answer:

Verified
Correct Answer:
Verified
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