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Old 08-01-2007   #1
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Default probability and statistics problem?

a train is pulling 3 wagons, 3 with chemicals, 2 with steel and 3 with animals. in how many different ways can we order them if there wagons with animals can't be next to a wagon with chemicals??? There is no difference between every wagon of the same thing, like... c1 c2 c3 s1 s2 a1 a 2 a3 and c3 c2 c1 s2 s1 a3 a2 a1 would be the same, it just goes like c c c s s a a a
Old 08-01-2007   #2
Diana B
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8...just a wild guess though...probably wrong.
Old 08-01-2007   #3
Grape Drink?
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If he has to pick one of every type, then the answer is 2.If he can have more than one of each type, ie: c c s, then the answer is 5.Next time, be more clear and specific on your problems.Hope that helped.

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