Answer
(b) has five significant figures (the smallest number)
Work Step by Step
a) 1/545 has 3 significant figures (5, 4, 5).
b) 1/6.4 x 10-3 has 2 significant figures (6 and 4).
c) 1/6.50 has 3 significant figures (6, 5, 0).
d.1/1.346 x 10^2 has 4 significant figures (1,3,4,6)
The correct answer is (b)..
