ECZ 2020 · GCE Paper 1 — Sets

Given that S = {x: 1 < x ≤ 15, x is a prime number}, list the elements of set S.

  • A. {3, 5, 7, 11, 13}
  • B. {1, 2, 3, 5, 7, 11, 13}
  • C. {2, 3, 5, 7, 11, 13}
  • D. {2, 3, 5, 7, 9, 11, 13}

Verified working — step 1

The prime numbers greater than 1 and not greater than 15 are:

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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