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Permutations
Find the number of different arrangement of the set of the six letters j,o,y,f,u,l :
A. Taken two at a time
B. Taken three at a time
C. Take six at a time
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*** formula of the ************ ** written ****
n!
(n − r)!
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= 30 *************
* ***** three ** a *****
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* **********************
= *** *************
* **** *** ** a time
** 6 and *** ********* ** ******* *** *****
= ******************
* *** ************
