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Unformatted text preview: Example 5: How many ﬁve-digit numbers can be formed if a) Zero is not the ﬁrst digit? b) Zero cannot be the ﬁrst digit and no digit can be repeated? c) Zero cannot be the ﬁrst digit, no digit can be repeated, and each number formed must be even? 10 c ± Kendra Kilmer September 16, 2011 Example 6: Jack and Jill and 5 of their friends go to the movies. They all sit next to each other in the same row. How many ways can this be done if a) there are no restrictions? b) Jill must sit in the middle? c) Jill sits on one end of the row and Jack sits on the other end of the row? d) Jack, Jill, or John sit in the middle seat? e) Jack, Jill, and John sit in the middle seats? f) Jack and Jill must sit next to each other? g) Jill must not sit next to Jack? Section 6.3 Highly Suggested Homework Problems: 1, 3, 5, 7, 9, 11, 15, 19, 21, 23, 25, 27, & Counting Handout 1 11...
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This note was uploaded on 03/27/2012 for the course MATH 141 taught by Professor Jillzarestky during the Fall '08 term at Texas A&M.
- Fall '08