In an badminton club,there are 10 couples.They will play mixed doubles match.The condition is that the wives will not play with their husbands and also they will not oppose them.Find out the number of matches possible?
In an badminton club,there are 10 couples.They will play mixed doubles match.The condition is that the wives will not play with their husbands and also they will not oppose them.Find out the number of matches possible?