ECZ 2010 · O-Level Paper 1 — Variation
Using x = kzy2 with k = 4.5, find y when x = 3 and z = 24.
- A. 36
- B. 12
- C. 4
- D. 6
Verified working — step 1
3 = 4.524y2, so 3y2 = 108 and y2 = 36, giving y = …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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