Permutations And Combinations Question 138
Question: There are 9 chairs in a room on which 6 persons are to be seated, out of which one is guest with one specific chair. In how many ways they can sit [MP PET 1987]
Options:
A) 6720
B) 60480
C) 30
D) 346
Correct Answer: A 5 persons are to be seated on 8 chairs $ i.e. $ $ ^{8}C_5\times 5\ ! $ or 6720. {Since 5 chairs can be selected in $ ^{8}C_5 $ and then 5 persons can be arranged in $ 5\ ! $ ways}.
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Answer:
Solution:
BETA
