Question 868916
Assuming there are 5 males and 5 females in the couples, there are 
{{{N[total]=10*9*8*7=5040}}} possible ways to choose. 
Out of those there are {{{5}}} possible choices that are only males chosen.
So then the number of choices with at least one female would be
{{{N[1F]=5040-5=5035}}}