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What is the percentage error if the measured value is 20 and the true value is 2

Practice Questions

Q1
What is the percentage error if the measured value is 20 and the true value is 25? (2021)
  1. 20%
  2. 25%
  3. 5%
  4. 10%

Questions & Step-by-Step Solutions

What is the percentage error if the measured value is 20 and the true value is 25? (2021)
  • Step 1: Identify the measured value and the true value. Here, the measured value is 20 and the true value is 25.
  • Step 2: Subtract the measured value from the true value to find the difference. Calculate |25 - 20| which equals 5.
  • Step 3: Divide the difference by the true value. So, calculate 5 / 25.
  • Step 4: Multiply the result from Step 3 by 100 to convert it to a percentage. So, (5 / 25) * 100 equals 20.
  • Step 5: The final answer is the percentage error, which is 20%.
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