A round table conference is to be held amongs | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) To arrange $20$ delegates around a round table such that $2$ particular delegates sit together,we treat the $2$ delegates as a single unit.Now,we

Vedclass · Accepted Answer

$2 	imes 18!$

Vedclass · Answer

(A) To arrange $20$ delegates around a round table such that $2$ particular delegates sit together,we treat the $2$ delegates as a single unit.Now,we have $18$ other delegates plus $1$ unit (the pair),making a total of $19$ units.The number of ways to arrange $19$ units in a circle is $(19 - 1)! = 18!$.The $2$ delegates within their unit can be arranged in $2!$ ways.Therefore,the total number of arrangements is $2! 	imes 18! = 2 	imes 18!$.

$A$ round table conference is to be held amongst $20$ countries. If two particular delegates wish to sit together,then in how many ways can such arrangements be done?

Similar Questions

The number of ways in which $5$ boys and $4$ girls can sit around a circular table such that no two girls sit together is:

If $11$ members of a committee sit at a round table so that the President and Secretary always sit together,then the number of arrangements is

The number of ways of arranging all the letters of the word "$COMBINATIONS$" around a circle so that no two vowels come together is

The number of different ways of preparing a garland by using $6$ distinct white roses and $6$ distinct red roses such that no two red roses come together is

$n$ gentlemen can be made to sit on a round table in how many ways?

Vedclass Test Series

Exam Paper Generator

Online Exam Module