Posted by Rory on Wednesday, April 13, 2011 at 9:19pm.
i need the answer to finding the number of three letter permutations of the letters l,s,u,v,r

Math  MathMate, Wednesday, April 13, 2011 at 9:27pm
The 3letter permutation would be obtained by choosing the first letter from 5 choices, the second from 4 choices, and the third from 3 choices.
By the rule of multiplication, the number of permutations is thus 5*4*3.
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