2. There are three trails to the top of a mountain. In how many ways can a person hike up and down the mountain if... a) she wants to take the same trail both ways? b) she can, but need not, take the same trail both ways? c) she does not want to take the same trail both ways?

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.1: Sets And Geometry
Problem 35E
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2. There are three trails to the top of a mountain. In how many ways can a person hike up and down the
mountain if...
a) she wants to take the same trail both ways?
b) she can, but need not, take the same trail both ways?
c) she does not want to take the same trail both ways?
Transcribed Image Text:2. There are three trails to the top of a mountain. In how many ways can a person hike up and down the mountain if... a) she wants to take the same trail both ways? b) she can, but need not, take the same trail both ways? c) she does not want to take the same trail both ways?
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