7 Red apple(RA), 5 white apple(WA), 8 oranges (O) 5 fruits to be selected (Note:- fruits taken different) Possible selections :- (2O,1‌RA,2‌WA) or (2O , 2RA, 1WA) or (3O, 1RA, 1WA) ‌⇒‌8C2‌7C1‌5C2+‌8C2‌7C2‌5C1+‌8C3‌7C1‌5C1 ‌⇒1960+2940+1960 ‌⇒6860