2009
Mathematics
JAMB
In how many ways can 9 people be seated if 3 chairs are available?
A.
720
B.
504
C.
336
D.
210
Correct Answer: 504
Explanation
9P3 =9!ways/(9-3)! =9!/6! =9 x 8 x 7 x 6!/6! = 504 ways
9P3 =9!ways/(9-3)! =9!/6! =9 x 8 x 7 x 6!/6! = 504 waysTHIS WEEK's
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