NECO Mathematics 2022 Objective — Question 49
Question 49 of 50 from the National Examinations Council (NECO) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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Given that log base 3 of 27 = 2x+1, find the value of x.
- A. 0
- B. 1Correct
- C. 2
- D. 3
Explanation
log3(27)=2x+1 means 27=3^(2x+1). Since 27=3^3, we get 3=2x+1, so 2x=2, x=1.
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