ECZ 2019 · O-Level Paper 1 — Approximations

The length of a piece of wire is measured as 4.5 cm. Calculate (b) the relative error.

Verified working — step 1

Relative error = tolerancemeasuredvalue

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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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