Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 10 - Section 10.6 - Counting Principles, Permutations, and Combinations - Exercise Set - Page 1103: 32


Total number of ways to order a meal equals to 144.

Work Step by Step

We know that the situation involves making choices with four groups of items. We use the fundamental counting principle to find the number of ways to order a meal. Multiply the number of choices for each of the two groups. That is, $4\times 3\times 4\times 3=144$ Hence, there are 144 ways to order a meal. And, two such orders are: Order1 - Fish, Peas, Milk, cake Order2 - Beef, Potatoes, Soda, Pie The total number of ways to order a meal equals to 144.
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