Probabilty Question:2 couples and 1 person

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How to solve this???



Two couples and one single person are seated at random in a row of five chairs. What is the probability that neither of the couples sits together in adjacent chairs?

a)1/5
b)1/4
c)3/8
d)2/5
e)1/2

I am having problems in Probability .Especially when to choose P or choose C(Permutations formula or Combination Formula).
Would be thankful if any stalwart can help me and guide me for probability.
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by shankar.ashwin » Thu Oct 13, 2011 1:58 am

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