c) There are three train tracks from village X to village Y and four train tracks from village Y to village Z. i) How many ways to travel from village X to village Z via village Y by train? ii) How many different round-trip routes are there from village X to Y to Z to Y and back to X in which the same road cannot be travelled twice?
c) There are three train tracks from village X to village Y and four train tracks from village Y to village Z. i) How many ways to travel from village X to village Z via village Y by train? ii) How many different round-trip routes are there from village X to Y to Z to Y and back to X in which the same road cannot be travelled twice?
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.3: Rules For Addition
Problem 7P
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Transcribed Image Text:c) There are three train tracks from village X to village Y and four train tracks
from village Y to village Z.
i) How many ways to travel from village X to village Z via village Y by
train?
ii)
How many different round-trip routes are there from village X to Y to
Z to Y and back to X in which the same road cannot be travelled
twice?
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