2. How many ways can 10 books be arranged in a shelf if one of them is a bible and it must be placed on the rightmost end? 3. There are 7 finalists for a Mathematics contest, and medals will be given to the top 3 finalists. How many ways are there for the medal winners to be selected?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Answer number 2 to 3 pls. I know you can answer 2 questions. 

1. In how many ways can 3 boys and 4 girls sit in a row if
a. they are to sit alternately?
b. the boys and girls are to sit together?
2. How many ways can 10 books be arranged in a shelf if one of them is a bible and it must be
placed on the rightmost end?
3. There are 7 finalists for a Mathematics contest, and medals will be given to the top 3
finalists. How many ways are there for the medal winners to be selected?
Transcribed Image Text:1. In how many ways can 3 boys and 4 girls sit in a row if a. they are to sit alternately? b. the boys and girls are to sit together? 2. How many ways can 10 books be arranged in a shelf if one of them is a bible and it must be placed on the rightmost end? 3. There are 7 finalists for a Mathematics contest, and medals will be given to the top 3 finalists. How many ways are there for the medal winners to be selected?
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