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Joshua and Jose work at an auto repair center with 4 other

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Intern
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Joined: 11 Jun 2006
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Joshua and Jose work at an auto repair center with 4 other [#permalink] New post 27 Jun 2006, 21:20
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Joshua and Jose work at an auto repair center with 4 other workers . For a suvery in heathcare insurance , 2 of the 6 workers will be randomly chosen to be interviewed. What is the probability that both Joshua and Jose will be chosen ?
Intern
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Joined: 11 Jun 2006
Posts: 16
Followers: 0

Kudos [?]: 0 [0], given: 0

 [#permalink] New post 27 Jun 2006, 21:34
explain please, I have posted to discuss not just to get the answer
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GMAT Tests User
 [#permalink] New post 27 Jun 2006, 23:28
Two Methods

1) Probability of chosing Josh first = 1/6
Probability of chosing Jose second = 1/5
total = 1/30
Probability of chosing Jose first = 1/6
Probability of chosing Josh second = 1/5
Total = 1/30
Final = 1/30 + 1/30 = 1/15

2) Number of ways two persons can be chosen 6C2 = 15
Number of ways Josh and Jose are the two persons = 1
Total = 1/15
  [#permalink] 27 Jun 2006, 23:28
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Joshua and Jose work at an auto repair center with 4 other

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