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Question

A student measured the length of a desk as 2.5m2.5\text{m} instead of the actual length of 2.4m2.4\text{m}. Calculate the percentage error.

Verified Answer

4.17%4.17\%

Explanation & Step-by-Step Solving

Solving: Error=2.5−2.4=0.1\text{Error} = 2.5 - 2.4 = 0.1. Percentage Error=ErrorActual×100%=0.12.4×100%=4.166...%≈4.17%\text{Percentage Error} = \frac{\text{Error}}{\text{Actual}} \times 100\% = \frac{0.1}{2.4} \times 100\% = 4.166...\% \approx 4.17\%.

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