We have 10 men and 8 women. Possible number of ways of forming a committee are 5 women, 3 men or 6 women, 2 men or 7 women, 1 men or 8 women ∴ Required number of ways ‌=‌8C5×‌10C3+‌8C4×‌10C2+‌8C7×‌10C1+‌4C1 ‌=6720+1260+80+1=8061