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JAMB Mathematics 1994 Question 43

Question 43

Data Presentation

The grades A1, A2, A3, C4 and F earned by students in a particular course are shown in the pie chart above. What percentage of the students obtained a C4 grade?

Diagram for this question
  1. A.52.0
  2. B.43.2
  3. C.40.0
  4. D.12.0
Show the answer and explanation

Answer: D (12.0)

Explanation

The C4 sector is 43.2°. As a percentage of the whole circle: 43.2/360 × 100 = 12%.