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Nine prisoners are waiting on a death row. How many

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Nine prisoners are waiting on a death row. How many [#permalink] New post 20 Aug 2003, 05:57
Nine prisoners are waiting on a death row. How many different combinations are there to select four of them for today's execution, if both joe and Ted must stay alive?
a. 4 b. 12 c. 35 d. 45 e. 126
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 [#permalink] New post 20 Aug 2003, 09:34
did I make a mistake isn't 7C4=70.
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 [#permalink] New post 20 Aug 2003, 11:22
Agree..

How many combinations are there if Joe and Ted are to be executed today ?

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 [#permalink] New post 20 Aug 2003, 11:26
Would need two more peeps to join ted and joe so 7C2=21
  [#permalink] 20 Aug 2003, 11:26
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Nine prisoners are waiting on a death row. How many

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