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WAEC Mathematics 2026 Question 1

Question 1

Ratio, Percentages and Rates

A student approximated 1.2476 to two significant figures instead of two decimal places. Find the percentage error

  1. A.90%
  2. B.5%
  3. C.4%
  4. D.0.05%
Show the answer and explanation

Answer: C (4%)

Explanation

To 2 s.f. it is 1.2; to 2 d.p. it is 1.25. Error = 0.05, and 0.05/1.25 × 100% = 4%.