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PRASHANT MISHRA Grade:
        

There are two rows and five couples. Number of ways in which we can arrange all husbands and wives so that no husband comes in back and front of his wife?


 

6 years ago

Answers : (1)

Devasish Bindani
45 Points
										

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here A is the first row and B be the second row


since the no of couples are five


first row can take any one male from the couple so the no of ways one husband can be placed in row A = 5


since one among all the 5 females is the persons wife therefore only fur persons can stand in second rows


now the toal no of pairs is as for one man there are 4 women therefore for toal of 5 men there are 5*4=20combinatios are possible


yo man all d best

6 years ago
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