ECZ 2016 · O-Level Paper 1 — Sequences and Series
The first and second terms of an arithmetic progression are 100 and 95, respectively. Find the tenth term.
- A. 50
- B. 55
- C. 45
- D. 145
Verified working — step 1
a = 100, d = 95 − 100 = −5. T₁₀ = a + 9d = 100 + 9(−5) = 100 − 45 = …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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