How would you use permutations to find the arrangements possible if a line has 2 girls want to stand together?

Gaaljh
2022-06-27
Answered

How would you use permutations to find the arrangements possible if a line has 2 girls want to stand together?

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Amy Daniels

Answered 2022-06-28
Author has **20** answers

Step 1

Ii the line is for N persons and two girls have to stand together, count the two girls as 1 person.

Then, the number of permutations is $(N-1)!$.

Step 2

For every such arrangement, these two girls can stand in two ways, one after the other..

So, overall, the number of permutations is $2X(N-1)!$.

Ii the line is for N persons and two girls have to stand together, count the two girls as 1 person.

Then, the number of permutations is $(N-1)!$.

Step 2

For every such arrangement, these two girls can stand in two ways, one after the other..

So, overall, the number of permutations is $2X(N-1)!$.

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