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Q : Suppose 9 cards are number with the 9 digits from 1 to 9 . A 3-card hand is dealt, 1 card at a time . How many hands are possible where :
1 ) Order is taken into consideration ?
2 ) order is not taken into considreation ?
----------Ansewr >>
1 - 9C3 X 9C1 = 84 X 9 = 756
2 - 9P3 X 9P1 = 504 X 9 = 4536
1 ) Order is taken into consideration ?
2 ) order is not taken into considreation ?
----------Ansewr >>
1 - 9C3 X 9C1 = 84 X 9 = 756
2 - 9P3 X 9P1 = 504 X 9 = 4536