Solve the following set of combinations and permutations.   How many two digit numbers can be generated using the digits 1,2,3,4 without repeating any digit? How many different nine-digit phone numbers can be constructed if each number can only appear once and the first three numbers must be 860? There are 6 persons in an office. A group consisting of 3 persons has to be formed. In how many ways can the group be formed?

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.CR: Chapter Review
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  1. Solve the following set of combinations and permutations.

 

  1. How many two digit numbers can be generated using the digits 1,2,3,4 without repeating any digit?
  2. How many different nine-digit phone numbers can be constructed if each number can only appear once and the first three numbers must be 860?
  3. There are 6 persons in an office. A group consisting of 3 persons has to be formed. In how many ways can the group be formed?
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