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JAMB Mathematics 2019 Objective — Question 11

Question 11 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2019 Objective paper, with the correct answer and a full explanation.

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If log₃ 18 + log₃ 3 − log₃ x = 3, find x

  • A. 1
  • B. 0
  • C. 3
  • D. 2Correct

Explanation

log₃(18×3/x)=3 ⇒ 54/x=3³=27 ⇒ x=54/27=2.

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