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Okay, this one is very simple. However, I'm having trouble determining whether or not to use permutations or combinations. Yes, permutations is when order matters and combinations is vice versa. Being the idiot I am, I still can't tell. Woot.
The parking-lot of a company has three spaces labeled "Vice-President." However, there are seven vice-presidents. In how many ways could these spaces be occupied by the vice-presidents' cars?
It's either 7P3 or 7C3. Which one, which one? Gah, I hate this.
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Whoops. Sorry, one more!
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Whoops. Sorry, one more!
by BlasianAsian » Sun Feb 26, 2012 1:41 pm
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Re: Whoops. Sorry, one more!
by nsguy1350 » Sun Feb 26, 2012 1:45 pm
Well, the question is asking in how many ways oculd they occupy the spaces. If you think that 1,2,3 is different from 2,1,3, then go 7P3. Else use 7C3.
I'm going with 7P3, since I think that order does matter here.
210?
I'm going with 7P3, since I think that order does matter here.
210?
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