JAMB Mathematics 2009 Objective — Question 19
Question 19 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2009 Objective paper, with the correct answer and a full explanation.
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Find to infinity, the sum of the sequence 1, 9/10, (9/10)^2, (9/10)^3, ...
- A. 10Correct
- B. 9
- C. 10/9
- D. 9/10
Explanation
S(infinity) = a/(1-r) = 1/(1-9/10) = 1/(1/10) = 10.
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