ECZ 2012 · O-Level Paper 1 — Variation
Given that y = kxz with k = 3, find the value of x when y = 4 12and z = 5.
- A. 30
- B. 0.3
- C. 3
- D. 1.5
Verified working — step 1
4.5 = 3 x x x 5 = 15x, so x = 4.515= …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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