There are n white and n black balls...

There are n white and n black balls market 1,2,3 . . . N the number of ways in which we can arrange these balls in a row so that neighboring balls are of different colours is

A

`""^(n)P_(m)`

B

`""^(n)C_(m)xx(m-1)!`

C

`(1)/(2).""^(n)P_(m)`

D

`""^(n-1)P_(m)`

Text Solution

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The correct Answer is:

A

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