ECZ 2026 · GCE Paper 1 — Approximations

The absolute error of a number n is 5 and the relative error for the same number is 0.2. Find the percentage error.

  • A. 20%
  • B. 0.2%
  • C. 2%
  • D. 25%

Verified working — step 1

Percentage error is the relative error written as a percentage, so multiply the relative error by 100%.

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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