MathematicsProgressionsWAEC
The 3rd term of an arithmetic progression is 11 and the 7th term is 27. Find the common difference.
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Answer: B. 4
(a + 6d) − (a + 2d) = 4d = 27 − 11 = 16, so d = 4.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.