Name: Navi Who is asking: Student Level: Secondary
Question: (a) One child invited to the party is given 2 books as gift. if there was 15 different books to choose from, how many diffrent gifts were possible?
Answeer: I did this way 15C2=105 15C7/15C8=41409225 please help me out with this question with all part B Hi Navi, You have 8 N's (nonfiction) and 7 F's (fiction). You must not pick both books from the N's (which could be done on 8C2 = 28 ways). You're 105 choices from part A included the possibility of two choices from the N's, thus the total number of selections including 1 or 2 F's is 105  28 = 77. There is another, direct, approach to the poblem; can you see it? Penny
