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At an Automatic Car Wash,cars Arrive Randomly at a Rate

Question 9

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 car spend at the car wash?


A) 28 minutes
B) 32 minutes
C) 17 minutes
D) 24 minutes
E) None of the above

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