Mathematics for IGCSE & O level - Limits Of Accuracy (Section 3 - No. 32)
What is the lower bound of the difference in the lengths, given that 28.7 s is to 3 s.f, and 31.4 s is to 3 s.f?
2.6 s
2.65 s
2.7 s
2.75 s
Explanation
31.35-28.75 = 2.6
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