A) 5, 4, 2
B) 3, 3, 1
C) 5, 3, 4
D) 5, 3, 2
Correct Answer: A
Solution :
In 1.0024, all figures are significant. In 1.240, the significant figures are four (zero tells about precision). Zero before a number are not significant, hence 0.0020 has only two significant numbers (2 and 0 after 2).
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