Question: When additional band members arrived to help at the car wash, it was decided that two cars should be washed at a time instead of

When additional band members arrived to help at the car wash, it was decided that two cars should be washed at a time instead of just the one. Both work crews would work at the same rate.

(a) What is the average time for cars waiting in the line?

(b) What is the average number of cars in the line?

(d) What is the average time in the system?

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