From a group of 4 mean and 5 women, how many committees of sue 3 are possible if the committee formed with no restrictions if the committee must have at least 1 man and 1 woman? Solution a) total members = 9 so 9C3 = 84 b) atleast 1 men and 1 womn = 4C1 * 5C2 + 4C2*5C1 = 70.