WAEC Mathematics 2005 Question 3

Question 3

Fractions, Decimals and Approximation

Evaluate, correct to the nearest whole number: 7 1/2 − (2 1/2 + 3) ÷ 33/2

  1. A.33
  2. B.8
  3. C.7
  4. D.0
Show the answer and explanation

Answer: C (7)

Explanation

Brackets: 5 1/2. Division: 11/2 ÷ 33/2 = 1/3. Then 7 1/2 − 1/3 = 7 1/6 ≈ 7.