ECZ 2026 · GCE Paper 1 — Computer and Calculator

In the answer space is an incomplete program written in pseudocode for calculating the volume (v) of a cylinder given the height (h) and radius (r): Start Enter …… v = …… Output v Stop Complete the program. [v = πr2h]

  • A. Enter v; v = π × r2 × h
  • B. Enter h, r; v = 2 × π × r × h
  • C. Enter h, r; v = π × r2 × h
  • D. Enter r; v = π × r2

Verified working — step 1

A program can only use values it has been given, so the Enter line must supply every letter the formula uses - but never the answer v itself.

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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