ECZ 2025 · O-Level Paper 1 — Approximations
A bottle of mineral water has a capacity of 500 ± 0.5 millilitres. Find: (a) tolerance;
- A. (a) 0.5 mL (b) 0.1%
- B. (a) 500 mL (b) 0.1%
- C. (a) 0.5 mL (b) 1%
- D. (a) 1 mL (b) 0.2%
Verified working — step 1
(a)The tolerance is the amount shown after the ± sign.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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