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WAEC Mathematics 2009 Question 42

Question 42

Data Presentation

The pie chart shows the distribution of 4320 students who graduated from four Departments in a University. How many students graduated from the Science Department?

Diagram for this question
  1. A.840
  2. B.864
  3. C.920
  4. D.960
Show the answer and explanation

Answer: B (864)

Explanation

Science angle = 360° − (100° + 80° + 108°) = 72°. 72/360 × 4320 = 864.