JAMB Mathematics 2025 Objective — Question 29
Question 29 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2025 Objective paper, with the correct answer and a full explanation.
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If 2^x = 8^y and x = 2y+1, find the value of x.
- A. 3Correct
- B. 4
- C. 6
- D. 9
Explanation
2^x=2^(3y) so x=3y. With x=2y+1: 3y=2y+1 ⇒ y=1 ⇒ x=3.
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