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March 3rd, 2010, 11:06 PM   #1
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H can't know the question ask about permutations or Combina

Hi all

I face a problem in distinguish between permutations or Combination

For example :

Q 1 : From a committee of 10 person, in how many ways can we choose a chair and a vice chair and a secretary, assuming one person cannot hold more than one position?

Q 2 : In how many ways a committee of 5 members can be selected from 6 men and 5 women consisting of 3 men and 2 women?

here in like this questions how I can know the question for permutations or Combination?

please I want your help.
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March 4th, 2010, 02:35 AM   #2
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Re: H can't know the question ask about permutations or Combina

When dealing with permutations and combinations, both of them choose (without repetition) from a group but for one of them order is important and for the other order is not important.

For Q1: order is important

For Q2: order is not important but be sure to take gender into account.

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