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A 5.0g of salt was weighted by Tunde as 5.1g. What is the percentage error?

Mathematics
JAMB 1988

A 5.0g of salt was weighted by Tunde as 5.1g. What is the percentage error?

  • A. 20
  • B. 2
  • C. 1.1
  • D. 0.2
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Correct Answer: Option B
Explanation

% error = \(\frac{\text{actual error}}{\text{true value}}\) x 100

Where actual error = 5.1 - 5.0 = 0.1

true value = 5.0g

% error = \(\frac{0.1}{5.0}\) x 100

= \(\frac{10}{5}\)

= 2%


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