ECZ 2021 · O-Level Paper 1 — Approximations
A learner measured the length of a line to be 2.2cm. If the actual length is 2cm, find the (b) percentage error.
- A. 110%
- B. 20%
- C. 10%
- D. 0.10%
Verified working — step 1
Percentage error = (absolute erroractualvalue) × 100%The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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