Monday, March 29, 2010

Braintenance: Permutations and Combinations!

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Dear Fellow Cranial Crunchers:

You now have some problems. Wait. Let me re-phrase that. It was politically incorrect. Perhaps, "You now have some issues." No... perhaps, "You must now address some challenges." Ah, much better.

1. In a group of ten individuals, how many pairings are possible?

2. In a group of ten individuals, how many combinations of 3 individuals each are possible?

3. In a group of ten individuals, how many combinations of 2 or 3 individuals are possible?

4. Five paintings are to be arranged in a row on a wall. How many different arrangements are possible?

5. Same facts as in question 4, above: How many different arrangements are possible where two paintings by one particular artist must be side by side?

Hop to it!

Faithfully,

Douglas Castle
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For some helpful hints to assist you in finding the right answers for the above questions, you can get a free instructive download at:
http://www.mediafire.com/?ldfhznjmgmy


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