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The number of ways in which a mixed double game can be arranged amongst 9 married couples if no husband and wife play in the same game is
(a) 2 . 9 C 2 . 7 C 2 (b) 1512
(c) 3024 (d) None of these
Dear sanchit
out of 9 ,two men can be selected in 9 C 2 ways
now we can select from 7 women only because 2 women are the wife selected men
=7 C 2
and from these 2 men and 2 women 4 combination is possible to make a team
so number of game =4 * 9 C 2 7 C 2
=3024
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