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WAEC Mathematics 1995 Question 36

Question 36

Logarithms

If log10x = 2̄.3675 and log10y = 2̄.9738, what is the value of x + y, correct to three significant figures?

  1. A.0.117
  2. B.0.118
  3. C.0.903
  4. D.0.944
  5. E.0.946.
Show the answer and explanation

Answer: A (0.117)

Explanation

x = antilog 2̄.3675 = 0.02331 and y = antilog 2̄.9738 = 0.09415. x + y = 0.11746 ≈ 0.117.