The number of ways in which a mixed double game can be arranged from amongst 5 maried couples if at least one husband and wife play in the same game (A) 200 (B) 140 (C) 60 (D) none of these

The number of ways in which a mixed double tennis game can be arranged from amongst 9 married couple if no husband & wife plays in the same game is:

The number of ways in which a mixed doubles tennis game can be arranged from 9 married couples:

In how many ways cann a mixed doubles game in tennis be arranged from 5 married couples, if no husband and wife play in the same game?

Number of ways in which a lawn-tennis mixed double be made from seven married couples if no husband and wife play in the same set is a. 240 b. 420 c. 720 d. none of these

In how many ways can a mixed doubles game in tennis be arranged from 5 married couples, if no husband and wife play in the same game and two males are always opponents to two females?

In how many ways can a lawn tennis mixed double be made up from seven married couples if no husband and wife play in the same set?

If the number of ways in which a lawn-tennis mixed double be made from seven married couples if no husband and wife play in the same set is K , then greatest prime divisor of K is __________.

The number of weays in which a mixed doubles tenis game can be arranged between 10 players consisting of 6 men and 4 women is (A) 180 (B) 90 (C) 48 (D) 12

If the number of ways in which n different things can be distributed books each having 5 copies takig at least 2 copies of each books is 256, then n= (A) 3 (B) 4 (C) 5 (D) none of these

A lady gives a dinner party for six guests. The number of ways in which they may be selected from among ten friends if two of the friends will not attend the party together is 112 b. 140 c. 164 d. none of these