Answer
(b) 4
Work Step by Step
The least precisely known quantity, $408.0\times10^{5}$, has four significant figures. As this is a case of division or multiplication, the final result must also contain only four significant figures.
College Physics (7th Edition)
by Wilson, Jerry D.; Buffa, Anthony J.; Lou, Bo
Published by
Pearson
ISBN 10:
0-32160-183-1
ISBN 13:
978-0-32160-183-4
Chapter 1 - Measurement and Problem Solving - Learning Path Questions and Exercises - Conceptual Questions - Page 27: 17
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