GCE Mathematics 2024 Objective — Question 49
Question 49 of 50 from the General Certificate of Education (GCE) Mathematics 2024 Objective paper, with the correct answer and a full explanation.
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The fourth and eighth terms of an Arithmetic Progression are 16 and −4 respectively. Find the common difference.
- A. A. -6Correct
- B. B. 6
- C. C. -2
- D. D. 2
Explanation
Let a+3d=16 (3rd term... using given relation) and a+7d=−8 (7th term). Subtracting: 4d=−24 → d=−6.
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