ECZ 2025 · GCE Paper 1 — Variation
It is given that x = kzy2, where k is a constant of variation. x24p12y23qz16618 Given that k = 6, find p.
- A. 4
- B. 12
- C. 18
- D. 36
Verified working — step 1
p sits in the x-row, so run the formula forwards with its column's values: z = 6 and y = 3.The full step-by-step working and final answer, plus the video lesson for this topic, 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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