If we were to form 4-digit numbers using 2, 3, 4, and 5 without repetition, then how many 4-digit numbers do we have? For instance, suppose a bakery has a selection of 20 different cupcakes, 10 different donuts, and 15 different muffins, how many different orders are there? Eight students should be accommodated in two 3-bed and one 2-bed room. In how many ways can they be accommodated?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Counting Principles

 

Answer the following problems below.

I. Evaluate the following

II. Problem Solving

  1. If we were to form 4-digit numbers using 2, 3, 4, and 5 without repetition, then how many 4-digit numbers do we have?
  2. For instance, suppose a bakery has a selection of 20 different cupcakes, 10 different donuts, and 15 different muffins, how many different orders are there?
  3. Eight students should be accommodated in two 3-bed and one 2-bed room. In how many ways can they be accommodated?
  4. In a playground, 3 sisters and 8 other girls are playing together. In a particular game, how many ways can all the girls be seated in a circular order so that the three sisters are not seated together?
  5. In a raffle draw, Elvira won a free trip to any of two of these cities: Baguio, Cebu, Bacolod, and Zamboanga. How many choices has she had?

 

1. 5 P2
2. 15 P3
3. 6 C5
9 C5
4. 8 C3 CA
5. In how many ways can the letters of the word REFERENCE be arranged?
6C4
Transcribed Image Text:1. 5 P2 2. 15 P3 3. 6 C5 9 C5 4. 8 C3 CA 5. In how many ways can the letters of the word REFERENCE be arranged? 6C4
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