ECZ 2024 · O-Level Paper 1 — Variation
It is given that a varies as b and inversely as the square of c, and a = 9 when b = 12 and c = 2. Find the value of k, the constant of variation.
- A. 3
- B. 27
- C. 13
- D. 9
Verified working — step 1
Translate the words first: "varies as b" puts b on top; "inversely as the square of c" puts c2 underneath.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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