ECZ 2018 · O-Level Paper 1 — Approximations

The length of a line is 8 cm. If this is recorded as 8.2 cm, calculate the percentage error.

  • A. 2.50%
  • B. 0.20%
  • C. 25%
  • D. 2%

Verified working — step 1

Absolute error = 8.2 - 8

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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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