JAMB Mathematics 2008 Objective — Question 46
Question 46 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2008 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. 2/5
- C. 2/3
- D. 5/2Correct
Explanation
2(3^(2x-1))=162. 3^(2x-1)=81=3^4. 2x-1=4. 2x=5. x=5/2.
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