Question

The total number of ways in which 2n persons can be divided into n couples​

Answer 1

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Number of ways of dividing these people  2nPn=n!2n!

 

There are 2n similar people(as they are couples)

Here, we are dividing 2n people in n groups of 2 each, and we are concerned with mere grouping. 

Hence, the required number of ways is n!(2!)n2n!.

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Answer 2

Answer:

YES I'm girl

Step-by-step explanation:

a person or company involved in wholesale trade, especially one dealing with foreign countries or supplying goods to a particular trade.

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