ECZ 2019 · GCE Paper 1 — Approximations
The mass, m, of a block of wood is 876.4 g, correct to 1 decimal place. Complete the statement: … ≤ m ≤ …
- A. 876.35 ≤ m ≤ 876.45
- B. 876.3 ≤ m ≤ 876.5
- C. 875.9 ≤ m ≤ 876.9
- D. 876.0 ≤ m ≤ 876.8
Verified working — step 1
Correct to 1 decimal place means the smallest unit is 0.1, and half of that is 0.05. Lower bound = 876.4 − 0.05 = 876.35; upper bound = 876.4 + 0.05 = …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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