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JAMB Mathematics 1989 Question 47

Question 47

Data Presentation

In a class of 30 students, the marks scored in an examination are displayed in the following histogram: What percentage of the students scored more than 40%?

Diagram for this question
  1. A.14%
  2. B.40%
  3. C.46⅔%
  4. D.53⅓%
Show the answer and explanation

Answer: C (46⅔%)

Explanation

The bars above 40 marks show 6 + 6 + 2 = 14 students. 14/30 × 100 = 46⅔%.