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JAMB Mathematics 2007 Objective — Question 19

Question 19 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2007 Objective paper, with the correct answer and a full explanation.

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Find the sum to infinity of the series 2 + 3/2 + 9/8 + 27/32 + ...

  • A. 8Correct
  • B. 4
  • C. 2
  • D. 1

Explanation

a=2, r=(3/2)/2=3/4. Sum to infinity = a/(1-r) = 2/(1/4) = 8.

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