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JAMB Mathematics 2017 Objective — Question 40

Question 40 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2017 Objective paper, with the correct answer and a full explanation.

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Find the common difference of an A.P. whose 4th term is 24 and 11th term is 52.

  • A. A. 4Correct
  • B. B. 3
  • C. C. 14
  • D. D. 12

Explanation

T4=a+3d=24, T11=a+10d=52. Subtracting: 7d=28, so d=4.

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