How many committed of size 15, from a group of 20 men and 30 women, contain both genders?
what I find difficult is the difference of numbers within the gender where if it were just 50 people taken 15 at a time id have no problem.
thanks
How many committed of size 15, from a group of 20 men and 30 women, contain both genders?
what I find difficult is the difference of numbers within the gender where if it were just 50 people taken 15 at a time id have no problem.
thanks