passwella.
Menu

JAMB Mathematics 1985 Question 10

Question 10

Logarithms

Find x if log9 x = 1.5

  1. A.72.0
  2. B.27.0
  3. C.36.0
  4. D.3.5
  5. E.24.5.
Show the answer and explanation

Answer: B (27.0)

Explanation

x = 9^1.5 = (√9)³ = 3³ = 27.