Question
Question: There are 9 chairs in a room on which 6 persons are to be seated, out of which one is guest with one...
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
A
6720
B
60480
C
30
D
346
Answer
6720
Explanation
Solution
5 persons are to be seated on 8 chairs i.e. 8C3 x 5! Or 6720.
{Since 5 chairs can be select in 8C5 and then 5 persons can be arranged in 5! Ways}.