JAMB Mathematics 2007 Objective — Question 7
Question 7 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 value of x for which 2(3^(2x-1)) = 162.
- A. 1/2
- B. 2/3
- C. 3/2
- D. 5/2Correct
Explanation
3^(2x-1) = 81 = 3^4, so 2x-1=4, giving x = 5/2.
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