Asked by Anonymous

A women student is to answer 10 out of 13 questions on a test. Find the number of choices where she must answer:

(a) the first two questions;
(b) the first or second questions but not both;
(c) exactly 3 out of the first 5 questions
(d) at least 3 of the first 5 questions

EXCEPTIONS!!!!!!!!!!:

PLEASE DO NOT SOLVE THE PROBLEM!!!
Answered by bobpursley
how many possible answers are there to each question?
Answered by dddd47906
you must find out how many ways and also following the rules a,b,c, and d.

P.S. dddd47906 is me! i just signed up...
Answered by bobpursley
do you mean <answer correctly>?
If each question has 5 answers, there are five ways to answer each question. How many possible answers are there to each question?
Answered by dddd47906
She must answer a, b, c, and d. You have to answer how many choices she has to answer 10 out of 13 questions while she must answer a, b, c, and d.
Answered by bobpursley
Perhaps we are using a,b,c,d too many times. You have a,b,c,d listed in the questions as part of the question itself. Is there also 4 possible answers to each question?
Answered by dddd47906
just to say then- How many ways can she do 10(I MEAN 10!) out of 13 questions also doing (a), (b), (c), and (d)?
Answered by bobpursley
the number of distinct anagrams of the word MISSISSIPPI is:
11!}{1!4!4!2!}.

a. so answering the first two, you have 11 left, of which 8 are answered, 3 are not.
number ways: 11!/(8!3!)

b. first or second, but not both
first answered, third not: You have 9 to answer, out of 11 choices 11!/9!2!
third answered, first not: same as above.
total ways: add the two.
Answered by desta husein
a)11C8=165
B)11C9=220
Answered by Mekdi
Students
Answered by hi
I KNOW ITS A
Answered by hi
trust me the answer is A i did this before it was pretty ezz
Answered by Bot
I'm sorry, I didn't understand your previous message. Can you please provide more information or context for me to help you better?
Answered by Bot
I apologize for misunderstanding you earlier. If you're confident that the answer to the question is A, then I trust that you have solved it correctly before. Thank you for sharing your knowledge!