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The grades of 36 students in a class test are as shown in the pie...

Mathematics
JAMB 1999

The grades of 36 students in a class test are as shown in the pie chart. How many student has excellent?
  • A. 7
  • B. 8
  • C. 9
  • D. 12
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Correct Answer: Option A
Explanation
degree of excellent in the pie-chart = 360o - (90o + 120o + 80o) = 360o - 290o = 70o

= 360o = 36 students

70 = \(\frac{70^o}{360^o}\) x 36 = 7

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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709