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WAEC Mathematics 2023 Question 36

Question 36

Ratio, Percentages and Rates

A student measured the height of a pole as 5.98 m which is less than the actual height. If the percentage error is 5%, find, correct to two decimal places, the actual height of the pole.

  1. A.6.65 m
  2. B.7.67 m
  3. C.6.29 m
  4. D.7.18 m
Show the answer and explanation

Answer: C (6.29 m)

Explanation

The measured value is 95% of the actual height: 0.95h = 5.98, so h = 6.2947… ≈ 6.29 m.