ECZ 2019 · GCE Paper 1 — Sequences and Series
For the sequence −10, −7, −4, −1, …, find the 17th term.
- A. 41
- B. −58
- C. 38
- D. 44
Verified working — step 1
The common difference is −7 − (−10) = 3. Tₙ = a + (n − 1)d, so T₁₇ = −10 + 16 × 3 = −10 + 48 = …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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