Answer
precision 1 km
GPE 0.5 km
Work Step by Step
The position of the last significant digit (the tagged zero) is the ones place, so the precision is 1.
The greatest possible error is half the precision.
$GPE=0.5\times1=0.5$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 4 - Section 4.2 - Precision and Greatest Possible Error - Exercise - Page 166: 20
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