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10 people are arranged around a table. A chairperson and secretary are to be elected. How many arrangements are possible such s that the chairperson and secretary are opposite each other

Mathematics
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  • hba
Remember that a circular permutation is (n – 1)!
  • hba
so 9!2!
  • hba
is ur ans i guess

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Other answers:

answer says 7! x 8
its 8!
because
  • hba
ohh ok i get it now remove the 2 people (chairperson and secretary) u have total 8 left acc to circular perm 7!
the Secretary and president is not to be arranged
OHHHH i got it they are fixed right
therefore the rest can be arranged
thus 8!
got it dumb pants
???????
ya dumbpants has got it!
Suppose there is no chairperson and secretary. Now you have eight members. who can be arranged in 7! Now one among the pair of secretary and chairperson can be seated in 8 ways around the table ( the other will be just opposite). so, you have a total of 7! \(\times\) 8
i m doing the same thing .... @ujjwal
yeah! great Job!! @Hashir
what the hell is what ?
idk
  • hba
dude u are not allowed to ask for it
  • hba
awks.... ummm well thanks everyone!
  • hba
welcome
pleasure
Great! close it now @virtus

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