Multiple Choice
The number of ways one can select three cards from a group of n cards (assuming the order of the selection matters) , where , is given by
. For a certain card trick a magician has determined that there are exactly 5814 ways to choose three cards from a given group. How many cards are in the group?
A) 18 cards
B) 17 cards
C) 19 cards
D) 20 cards
E) 21 cards
Correct Answer:

Verified
Correct Answer:
Verified
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