Asked by yvonne
A tray contains 14 chocolate chip cookies and 16 oatmeal raisin cookies. How many ways can a child select 4 cookies that include at least 1 chocolate chip cookie?
Answers
Answered by
Reiny
Chocolate cookie -- C
Oatmeal cookie ----O
If the chocolate cookies are the same and the oatmeal cookies are the same ...
there are only the following selections
COOO
CCOO
CCCO
CCCC
If the cookies are different:
1C,3O --- C(14,1)xC(16,3) = 7840
2C,2O --- C(14,2)xC(16,2) = 10920
3C,1O --- C(13,3)xC(16,1) = 4576
4C ------C(13,4)xC(16,0) = 715
for a total of 24051
Oatmeal cookie ----O
If the chocolate cookies are the same and the oatmeal cookies are the same ...
there are only the following selections
COOO
CCOO
CCCO
CCCC
If the cookies are different:
1C,3O --- C(14,1)xC(16,3) = 7840
2C,2O --- C(14,2)xC(16,2) = 10920
3C,1O --- C(13,3)xC(16,1) = 4576
4C ------C(13,4)xC(16,0) = 715
for a total of 24051
Answered by
Anonymous
54
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.