ECZ 2024 · GCE Paper 1 — Sequences and Series

The sequence 20, 17, 14, ... is an arithmetic progression. Find the sum of the first 10 terms.

Verified working — step 1

a = 20, d = -3, n = 10

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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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