Answer
$$3 \ h\ 52\ min \ 30 s$$
Work Step by Step
Since 1 h=60 min and 1 min =60 s, then we have
$$13,950 \ s =\frac{19,350}{60*60}\ h=3.875 \ h= 3 \ h\ 52.5\ min \\
= 3 \ h\ 52\ min \ 30 s.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 3 - Section 3.5 - Time, Current, and Other Units - Exercise - Page 149: 27
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