Question

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

Answer 1

Remember that a circular permutation is (n – 1)!

Answer 2

so 9!2!

Answer 3

is ur ans i guess

Answer 4

answer says 7! x 8

Answer 5

its 8!

Answer 6

because

Answer 7

ohh ok i get it now remove the 2 people (chairperson and secretary) u have total 8 left acc to circular perm 7!

Answer 8

the Secretary and president is not to be arranged

Answer 9

OHHHH i got it they are fixed right

Answer 10

therefore the rest can be arranged

Answer 11

thus 8!

Answer 12

got it dumb pants

Answer 13

???????

Answer 14

ya dumbpants has got it!

Answer 15

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

Answer 16

i m doing the same thing .... @ujjwal

Answer 17

yeah! great Job!! @Hashir

Answer 18

what the hell is what ?

Answer 19

idk

Answer 20

dude u are not allowed to ask for it

Answer 21

@ujjwal

Answer 22

awks.... ummm well thanks everyone!

Answer 23

welcome

Answer 24

pleasure

Answer 25

Great! close it now @virtus