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The length of a notebook 15cm, was measured as 16.8cm. Calculate the percentage error ...

The length of a notebook 15cm, was measured as 16.8cm. Calculate the percentage error to 2 significant figures.
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  • A 12.00%
  • B 11.00%
  • C 10.71%
  • D 0.12%
Correct Answer: Option A
Explanation:
Error = (16.8cm - 15cm = 1.8cm\)
\(\text{% error} = \frac{1.8}{15} \times 100% = \frac{180}{15}\)
= \(12.00%\)

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