JAMB Mathematics 2015 Objective — Question 27
Question 27 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2015 Objective paper, with the correct answer and a full explanation.
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The sixth term of an A.P is 3 times the second term. If the first term is 2, find the common difference.
- A. −4
- B. 4
- C. 2Correct
- D. −3
Explanation
T₆=a+5d, T₂=a+d. a+5d=3(a+d) ⟹ 2d=2a ⟹ d=a=2.
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