Post-UTME Mathematics 2006 Objective — Question 3
Question 3 of 10 from the Post-UTME Screening (Post-UTME) Mathematics 2006 Objective paper, with the correct answer and a full explanation.
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The 2nd and 5th terms of a geometric progression are 24 and 81 respectively, find the common ratio.
- A. 2/3
- B. 3/2Correct
- C. 5/2
- D. 7/2
Explanation
ar=24, ar⁴=81; dividing gives r³=27/8, so r=3/2.
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