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: 31

Answer

Total number of ways to order a drink by the customer equals to 40.

Work Step by Step

We know that the situation involves making choices with three groups of items. We use the fundamental counting principle to find the number of ways to order a drink by the customer. Multiply the number of choices for each of the two groups. That is, $2\times 4\times 5=40$ Hence, there are 40 ways to order a drink by the customer.
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