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Sunday, 01 March 2026
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A student measures a piece of rope and found that it was 1.26m long. If the actual ...

A student measures a piece of rope and found that it was 1.26m long. If the actual length of the rope was 1.25m, what was the percentage error in the measurement?
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  • A 0.25%
  • B 0.01%
  • C 0.80%
  • D 0.40%
Correct Answer: Option C
Explanation:
Actual length of rope = 1.25mMeasured length of rope = 1.26merror = (1.26 - 1.25)m - 0.01mPercentage error = \(\frac{error}{\text{actual length}}\) x 100%= \(\frac{0.01}{1.25}\) x 100% = 0.08%

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