Question : While measuring a line segment of length 10 cm, it was measured 10.2 cm by mistake, what is the percentage error in measurement?
Option 1: 1%
Option 2: 0.5%
Option 3: 0.2%
Option 4: 2%
Answer (1)
25th Jan, 2024
Correct Answer: 2%
Solution :
Given: Correct measurement value = 10 cm
Measurement by mistake = 10.2 cm
Error = 10.2 – 10 = 0.2
Error percentage = $\frac{\text{Error}}{\text{Correct measurement value}}\times100$
= $\frac{0.2}{10}\times100$
= 2
Hence, the correct answer is 2%.
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