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May 24, 2015

Homework Help: Math(Factorial)

Posted by Anonymous on Wednesday, April 9, 2014 at 4:56pm.

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!!!

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