Finite Math and Applied Calculus (6th Edition)

Published by Brooks Cole
ISBN 10: 1133607705
ISBN 13: 978-1-13360-770-0

Chapter 6 - Section 6.3 - Decision Algorithms: The Addition and Multiplication Principles - Exercises - Page 423: 7

Answer

15

Work Step by Step

The first step can be done $1+2=3$ possible ways. the second step can be done $2+2+1=5$ possible ways The total number of the possibilities is the product of these : $3*5=15$
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