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JAMB Mathematics 1986 Question 14

Question 14

Logarithms

Find n if log24 + log27 − log2 n = 1

  1. A.10
  2. B.14
  3. C.27
  4. D.28
Show the answer and explanation

Answer: B (14)

Explanation

log₂(28/n) = 1, so 28/n = 2 and n = 14.