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WAEC Mathematics 1999 Question 13

Question 13

Data Presentation

The pie chart illustrates the amount of private time a student spends in a week studying various subjects. If he spends 2½ hours a week on Science, find the total number of hours he studies in a week.

Diagram for this question
  1. A.3⅓ hours
  2. B.5 hours
  3. C.8 hours
  4. D.12 hours.
Show the answer and explanation

Answer: D (12 hours.)

Explanation

Science has 75° of the 360°. Total = 2½ × 360/75 = 12 hours.