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 (b) 4th term.
- A. 19
- B. 12
- C. 15
- D. 16
Verified working — step 1
The 4th term sits THREE steps from the first term - a + 3d, not a + 4d.The full step-by-step working and final answer, plus the video lesson for this topic, 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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