ECZ 2020 · GCE Paper 1 — Sequences and Series

Given that the 11th term of an arithmetic progression is 43 and that the first term is 3, find the (a) common difference,

  • A. 3
  • B. 4.3
  • C. 4
  • D. 40

Verified working — step 1

T_11 = a + 10d

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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