JAMB Mathematics 2007 Objective — Question 43
Question 43 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2007 Objective paper, with the correct answer and a full explanation.
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The pie chart above illustrates the amount of private time a student spends in a week studying various subjects (Maths 105 deg, Social 75 deg, Science k, Others 3k, English 2k). Find the value of k.
- A. 15 deg
- B. 30 degCorrect
- C. 60 deg
- D. 90 deg
Explanation
Sum of all sectoral angles = 360 deg: 105+75+3k+k+2k=360, so 180+6k=360, giving k=30 degrees.
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